Only one person can say he defeated a sitting majority leader in the House of Representatives: Republican Rep. David Brat, currently in his first term representing the 7th district of Virginia.

Brat shocked the nation when he beat former Majority Leader Eric Cantor in a June 2014 Republican primary. Brat focused almost exclusively on doing something about illegal immigration and reducing federal debt. He won comfortably, 55.5-45.5 percent. Before the election, pollsters projected he would lose by up to 40 percent.