Former House Majority Leader Eric Cantor admitted Tuesday that he underestimated Donald Trump as a presidential candidate. “I was predicting way back when that Donald Trump had no chance. I think many of us were,” Cantor said on Tuesday in an interview with CNBC. “I’ve stopped the business of predicting.”The former Virginia representative said he can see "a lot of similarities" between his primary loss to Dave Brat in 2014 and Trump's campaign."Because he does best when it’s open primaries, where he gets independents and those who feel disaffected.