Jo Swinson has become the first female Liberal Democrat leader after decisively beating Sir Ed Davey in a poll of party members.
The 39-year-old won just shy of 48,000 votes against Sir Ed’s 28,021 to replace Sir Vince Cable at the party’s helm.
The MP for East Dunbartonshire served as the former leader’s deputy since 2017 before she was elected as leader on Monday.
Here’s everything you need to know about Jo Swinson.
Who is Jo Swinson?
Ms Swinson went to school in East Dunbartonshire in western Scotland before she studied Management at the London School of Economics.
She signed up as an active member of the Liberal Democrats when she was 17 years old.
After working in marketing and PR for Viking FM radio station in Hull, Ms Swinson ran in the 2001 election in the Hull East constituency but lost out to John Prescott, the then deputy leader of the Labour Party.
She went on to lose another election in 2003 for the Strathkelvin and Bearsden seat in the Scottish Parliament before finally winning a general election in 2005 running in the East Dunbartonshire constituency.
She is married to fellow Liberal Democrat MP Duncan Hames, and the couple have two children.
Political Career
Ms Swinson, who has been the party's deputy leader since 2017, was a business minister in the Lib Dem-Conservative coalition government.
She regained her East Dunbartonshire seat in 2017 after losing it two years earlier to SNP candidate John Nicolson.
During her time as an MP she was vocal in her opposition to the Iraq War as well as Labour’s proposal for national identity cards.
Ms Swinson has also called for a "wellbeing index" to be introduced to be compared against GDP as well as campaigning against the building of new prisons.
Her election victory
Ms Swinson won a landslide 47,997 votes to claim the top spot in a ballot of party members in a contest of a 72 percent turnout.
She said of her opponent: "Ed is a great friend and a superb politician, and will have a crucial role to play in our team."
After telling activists she was “over the moon” to have been elected, Ms Swinson said she was “ready for the fight of our lives”
Brexit Stance
The 39-year-old said she would do “whatever it takes to stop Brexit”.
Ms Swinson said the UK’s vote to leave the EU marked a “retreat" from the world and a challenge to “liberal values” and “fundamental freedoms” her party has historically championed.
"Tomorrow, Boris Johnson is likely to take the keys to Number 10 and set us on a path to a damaging no-deal Brexit," she said.
"Stopping Boris, and stopping Brexit is my number one priority as leader."
Describing Mr Johnson, the Tory leadership frontrunner, as "unfit to be prime minister", she said her party was ready to return to government.
"I stand before you today not just as leader of the Lib Dems, but as a candidate to be prime minister. There is no limit for my ambition for our party, our movement and our country," she said.
"I am ready to take my party into a general election and win it."
Lib Dems' Revival
The party is enjoying a revival due to their outspoken opposition to Brexit with Ms Swinson saying that the UK’s future lay in the European Union.
The party has 12 MPs - bolstered by Chuka Umunna's decision to join last month - and came second in the European elections, winning 20% of the vote share.
The Lib Dems also enjoyed a surge at the local elections in response to their anti-Brexit stance.
Ms Swinson has suggested that if Boris Johnson enters Number 10 and is committed to Brexit on October 31 with or without a deal then the Lib Dems could be boosted even further.
