The two main US political parties are in the middle of a nationwide process to choose their nominees for the next presidential election — to be held in November.
Each party holds a caucus or a primary in most of the 50 states, and the results determine how many delegates are assigned to each candidate.
The presidential nominee — the person who will campaign to be president — is officially decided at the parties' national conventions.
The magic number of delegates for the Democratic Party is 2,383, and 1,237 for the Republicans.
Cruz, Clinton win Iowa
February 1, 2016
Ted Cruz felled long-time Republican frontrunner Donald Trump and Democrat Hillary Clinton claimed a narrow victory over rival Bernie Sanders as Iowans held the inaugural vote of the 2016 White House race.
Delegates available: 52 Democrat, 30 Republican
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 23 |
| Bernie Sanders | Democrat | 21 |
| Donald Trump | Republican | 7 |
| Ted Cruz | Republican | 8 |
| Marco Rubio | Republican | 7 |
| John Kasich | Republican | 1 |
| Jeb Bush | Republican | 1 |
| Ben Carson | Republican | 3 |
New Hampshire: Trump, Sanders victorious
February 9, 2016
Bernie Sanders and Donald Trump decisively won presidential primaries in New Hampshire, riding a wave of anti-establishment anger in the second key test of the long, unpredictable race for the White House.
Delegates available: 32 Democrat, 23 Republican
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 9 |
| Bernie Sanders | Democrat | 15 |
| Donald Trump | Republican | 11 |
| Ted Cruz | Republican | 3 |
| Marco Rubio | Republican | 2 |
| John Kasich | Republican | 4 |
| Jeb Bush | Republican | 3 |
| Ben Carson | Republican | - |
Nevada (D), South Carolina (R)
February 20, 2016
Jeb Bush suspended his US election campaign after losing out in the South Carolina primary to Republican frontrunner Donald Trump, while Hillary Clinton beat back a strong challenge from Bernie Sanders in Nevada's Democratic caucus.
Delegates available: 43 Democrat, 50 Republican
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 20 |
| Bernie Sanders | Democrat | 15 |
| Donald Trump | Republican | 50 |
| Ted Cruz | Republican | - |
| Marco Rubio | Republican | - |
| John Kasich | Republican | - |
| Jeb Bush | Republican | - |
Nevada Republican Caucus
February 23, 2016
Nevada delivered a telling victory for Donald Trump, who picked up the majority of the state's delegates and further proved his presidential campaign was the real deal.
Delegates available: 30
| Candidate | Party | Delegates won |
| Donald Trump | Republican | 14 |
| Ted Cruz | Republican | 6 |
| Marco Rubio | Republican | 7 |
| John Kasich | Republican | 1 |
| Ben Carson | Republican | 1 |
South Carolina Democratic Primary
February 27, 2016
Hillary Clinton pulled off an overwhelming victory over rival Bernie Sanders in the South Carolina Democratic primary, handing her a welcome boost before the high-stakes Super Tuesday contest.
Delegates available: 59
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 39 |
| Bernie Sanders | Democrat | 14 |
Clinton, Trump take Super Tuesday
March 1, 2016
Republican Donald Trump and Democrat Hillary Clinton turned their sights on each other after recording big wins on the biggest day of state-by-state primary voting in the 2016 campaign.
Delegates available: 1034 Democrat, 641 Republican
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 504 |
| Bernie Sanders | Democrat | 354 |
| Donald Trump | Republican | 237 |
| Ted Cruz | Republican | 209 |
| Marco Rubio | Republican | 94 |
| John Kasich | Republican | 19 |
Cruz gains ground on Super Saturday
March 5, 2016
Ted Cruz narrowed the gap between him and Republican frontrunner Donald Trump with big wins in Kansas and Maine and Democrat Hillary Clinton maintained her lead over rival Bernie Sanders.
Delegates available: 126 Democrat, 155 Republican
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 56 |
| Bernie Sanders | Democrat | 53 |
| Donald Trump | Republican | 53 |
| Ted Cruz | Republican | 69 |
| Marco Rubio | Republican | 18 |
| John Kasich | Republican | 10 |
Maine (D), Puerto Rico (R)
March 6, 2016
Marco Rubio makes first primary win taking all 23 Republican candidates in Puerto Rico, while Bernie Sanders defeats Hillary Clinton in the Maine caucus.
Delegates available: 30 Democrat, 23 Republican
| Candidate | Party | Delegates won |
| Marco Rubio | Republican | 23 |
| Bernie Sanders | Democrat | 15 |
| Hillary Clinton | Democrat | 7 |
Hawaii (R), Idaho (R), Michigan, Mississippi
March 8, 2016
Donald Trump has rolled to big wins in the Michigan and Mississippi Republican primaries, while Bernie Sanders scored an upset in Michigan and Hillary Clinton won in Mississippi.
Delegates available: 188 Democrat, 150 Republican
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 90 |
| Bernie Sanders | Democrat | 71 |
| Donald Trump | Republican | 72 |
| Ted Cruz | Republican | 57 |
| Marco Rubio | Republican | 1 |
| John Kasich | Republican | 17 |
District of Columbia (R), Wyoming (R), Northern Mariana Islands (D)
March 12, 2016
Marco Rubio and Ted Cruz have won the Republican caucuses in Washington DC and Wyoming respectively, suggesting the race for the presidential nomination for the 2016 US election is tightening.
Delegates available: 11 Democrat, 19 Republican
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 4 |
| Bernie Sanders | Democrat | 2 |
| Donald Trump | Republican | 1 |
| Ted Cruz | Republican | 9 |
| Marco Rubio | Republican | 11 |
| John Kasich | Republican | 9 |
Florida, Illinois, Missouri, Northern Mariana Is (R), North Carolina, Ohio
March 15, 2016
Donald Trump won the crucial Republican primary contest in Florida while Hillary Clinton extended her lead in the Democrat contests. Marco Rubio announced he is pulling out of his bid for the Republican nomination.
Delegates available: 792 Democrat, 367 Republican
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 371 |
| Bernie Sanders | Democrat | 271 |
| Donald Trump | Republican | 213 |
| Ted Cruz | Republican | 41 |
| Marco Rubio | Republican | 6 |
| John Kasich | Republican | 80 |
Virgin Islands (R)
March 19
Delegates available: 9
Arizona, Idaho (D), Utah
March 22, 2016
US Republican front-runner Donald Trump swept to victory in Arizona but rival Ted Cruz showed some fight with a win in Utah, giving hope to establishment Republicans who fear Mr Trump would lead the party to ruin in the presidential election.
On the Democratic side, Hillary Clinton routed challenger Bernie Sanders in Arizona to stretch her advantage in the race for her party's presidential nomination. However, Mr Sanders won contests in Utah and Idaho to bolster his campaign.
Delegates available: 149 Democrat, 98 Republican
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 55 |
| Bernie Sanders | Democrat | 73 |
| Donald Trump | Republican | 58 |
| Ted Cruz | Republican | 40 |
| John Kasich | Republican | -- |
Alaska (D), Hawaii (D), Washington State (D)
March 26, 2016
Bernie Sanders has easily won Democratic nominating contests in Alaska, Washington and Hawaii, chipping away at Hillary Clinton's commanding lead in the race to pick the party's candidate for the White House.
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 20 |
| Bernie Sanders | Democrat | 55 |
Wisconsin
April 5, 2016
Republican Ted Cruz has won the Wisconsin presidential primary, dealing a blow to frontrunner Donald Trump's hopes of amassing the delegates needed for the party's nomination ahead of the July convention and boosting the chances of a rare contested convention.
Delegates available: 96 Democrat, 42 Republican
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 38 |
| Bernie Sanders | Democrat | 48 |
| Donald Trump | Republican | 6 |
| Ted Cruz | Republican | 36 |
| John Kasich | Republican | -- |
Wyoming (D)
April 9, 2016
Bernie Sanders has won the US presidential Democratic nominating contest in Wyoming, besting rival Hillary Clinton and adding to a string of recent victories as the two candidates gear up for a crucial matchup in New York.
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 7 |
| Bernie Sanders | Democrat | 7 |
Delegates available: 18
New York
April 19, 2016
Frontrunners Donald Trump and Hillary Clinton rolled to easy wins in New York state's presidential primaries, recapturing lost campaign momentum and taking big steps toward capturing their respective parties' nominations.
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 139 |
| Bernie Sanders | Democrat | 106 |
| Donald Trump | Republican | 89 |
| Ted Cruz | Republican | 36 |
| John Kasich | Republican | 4 |
Delegates available: 291 Democrat, 95 Republican
Connecticut, Delaware, Maryland, Pennsylvania, Rhode Is
April 26, 2016
Republican presidential frontrunner Donald Trump says he now considers himself the "presumptive nominee" after sweeping the day's five primaries in north-eastern states, while Democrat frontrunner Hillary Clinton defeated challenger Bernie Sanders in four states.
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 217 |
| Bernie Sanders | Democrat | 165 |
| Donald Trump | Republican | 57 |
| Ted Cruz | Republican | - |
| John Kasich | Republican | - |
Delegates available: 753 Democrat, 172 Republican
Indiana
May 3, 2016
Donald Trump won a commanding victory in Indiana's primary, forcing his main rival Ted Cruz to drop out of the race, while Hillary Clinton's march to the nomination was slowed by rival Bernie Sanders' victory.
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 38 |
| Bernie Sanders | Democrat | 44 |
| Donald Trump | Republican | 109 |
| Ted Cruz | Republican | 3 |
| John Kasich | Republican | 5 |
Delegates available: 92 Democrat, 57 Republican
Guam
May 7, 2016
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 4 |
| Bernie Sanders | Democrat | 3 |
Delegates available: 12 Democrat, 9 Republican
Nebraska (R), West Virginia
May 10, 2016
US Democratic presidential candidate Bernie Sanders has defeated Hillary Clinton in West Virginia's primary, winning over voters deeply sceptical about the economy and signalling the difficulty Mrs Clinton may have in industrial states.
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 11 |
| Bernie Sanders | Democrat | 18 |
| Donald Trump | Republican | 66 |
| Ted Cruz | Republican | -- |
| John Kasich | Republican | 1 |
Delegates available: 37 Democrat, 70 Republican
Kentucky (D), Oregon
May 17, 2016
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 52 |
| Bernie Sanders | Democrat | 61 |
| Donald Trump | Republican | 17 |
| Ted Cruz | Republican | 3 |
| John Kasich | Republican | 3 |
Delegates available: 135 Democrat, 28 Republican
Washington State (R)
May 24, 2016
| Candidate | Party | Delegates won |
| Donald Trump | Republican | 40 |
| Ted Cruz | Republican | -- |
| Marco Rubio | Republican | -- |
| John Kasich | Republican | -- |
Delegates available: 44
Trump wins enough delegates to clinch nomination
May 26, 2016
Donald Trump has secured the support of enough delegates to clinch the Republican presidential nomination, after unbound delegates pledged to back the billionaire.
Virgin Islands (D)
June 4, 2016
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 7 |
| Bernie Sanders | Democrat | -- |
Delegates available: 12
Puerto Rico (D)
June 5, 2016
Democratic presidential frontrunner Hillary Clinton defeated rival Bernie Sanders in Puerto Rico's Democratic primary, bringing her closer to victory in their long-fought battle for the party's presidential nomination.
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 36 |
| Bernie Sanders | Democrat | 20 |
Delegates available: 67
Clinton wins enough delegates to become Democratic nominee, says AP
June 6, 2016
Hillary Clinton has reached the number of delegates needed to clinch the US Democratic presidential nomination, the influential Associated Press news agency has announced.
California, Montana, New Jersey, New Mexico, North Dakota (R), South Dakota
June 7, 2016
- Hillary Clinton won New Jersey, South Dakota and New Mexico, Sanders won North Dakota and claimed Montana
- Donald Trump won New Jersey, California, Montana, New Mexico and South Dakota
- Hillary Clinton claims the presumptive Democratic nomination, while Bernie Sanders vows to fight on.
| Candidate | Party | Delegates won |
| Hillary Clinton | Democrat | 391 |
| Bernie Sanders | Democrat | 303 |
| Donald Trump | Republican | 303 |
Delegates available: 806 Democrat, 331 Republican
District of Columbia (D)
June 14, 2016
Delegates available: 45
* Hillary Clinton starts the race with 362 superdelegates, and Bernie Sanders eight superdelegates.
