Paul Krugman: On Invincible Ignorance

Remember Paul Ryan? The speaker of the House used to be a media darling, lionized as the epitome of the Serious, Honest Conservative — never mind those of us who actually looked at the numbers in his budgets and concluded that he was a con man. These days, of course, he is overshadowed by the looming Trumpocalypse.

But while Donald Trump could win the White House — or lose so badly that even our rotten-borough system of congressional districts, which heavily favors the G.O.P., delivers the House to the Democrats — the odds are that come January, Hillary Clinton will be president, and Mr. Ryan still speaker. So I was interested to read what Mr. Ryan said in a recent interview with John Harwood. What has he learned from recent events?