Donald Trump may not have a long history as a politician, but he flip-flops with the best of them. He has done a complete switcheroo on the Iraq War (he was for it before he was against it, despite what he claims now), immigration (he criticized Mitt Romney's harsh talk about undocumented immigrants before embracing even harsher measures), and trade (he was a free trader, even defending outsourcing, before he became an ardent protectionist). But one theme he has consistently stuck to is that he'll Make America Great Again by rebuilding its allegedly crumbling infrastructure.