It started back at a moment when some people thought Sarah Palin was still thinking about running for president. She wrote an op-ed where she endorsed Ryan’s policies and that put Republican candidates on notice that if you were going to compete for Republican votes in the 2012 primaries, you had to take a stand on Paul Ryan’s budgets. So that pushed all the candidates into making that choice and Romney, under some pressure frankly, endorsed it. And I think because there’s been a sort of vacuum in the Romney policy world, Paul Ryan has been very strategic about filling that vacuum.
— Ryan Lizza on how Paul Ryan has captured the GOP