WASHINGTON _ With only three states left to hold primaries this year, the battle lines have firmed up for a midterm election that could also determine the future for President Donald Trump.
Democrats need to net 23 seats to take control of the House, which would give them a platform to block the president's agenda and launch their own investigations of his finances and the 2016 election that could rival those already underway at the Justice Department.
It's no surprise Trump's influence has played a big role this primary cycle, from the record number of women and minority candidates who ran, to the success of Republicans who have embraced the president. Here's a deeper dive into some of the lessons we've learned.