Paul Ryan is, at least arguably, the leader of the Republican Party. He was the GOP's vice-presidential nominee in 2012. He's now speaker of the House of Representatives. And he remains the party's unofficial wonk-in-chief.
So what lessons has the savvy, brainy Ryan drawn from the stunning ascent of Donald Trump, as the billionaire (probably) businessman closes in on the Republican presidential nomination?
Maybe none. Certainly none that suggest Ryan thinks the party needs a big change of direction.