Ryan won them over the hard way: With hours of self-education in budgetary minutia in a small office on the first floor of the Capitol. He used that knowledge to make himself into an intellectual guidepost for congressional Republicans, who can have trouble looking beyond the next vote, let alone the next election.

“He knows the process and how government works better than anybody on Capitol Hill,” his fellow Budget Committee Rep. Jason Chaffetz (R-Utah) said after the Ryan selection became public early Saturday morning. “He understands budget, appropriations and entitlements better than anybody else in town. He’s got superior knowledge and that translates to good governance.”…

But there are sure to be doubters – not least among some within House Republican leadership. There’s a significant pocket of aides and lawmakers within the top rungs of leadership who think Ryan’s selection is detrimental to House Republicans. Outside groups – mainly super PACs and their affiliated organizations – have recently received polling that showed the Ryan budget was lethal to their political prospects.