Analysts expected control of the House to flip to Democrats after this year’s midterm elections, when all 435 seats were up for grabs. About two dozen Republican-held districts that backed Democrat Hillary Clinton in 2016 were among the most vulnerable for the GOP.
Some factors were working in the Democrats’ favor, namely President Trump’s unpopularity and a favorable redrawing of Pennsylvania’s congressional lines. Retirements also provided opportunities for party flips.
Every Senate Democrat voted for new border barriers along the southern border as part of an immigration overhaul bill in 2013. Now Democrats are refusing President Trump's request for what they say is an unnecessary wall.