Paul Krugman: Trump Is No Accident

Establishment Republicans who are horrified by the rise of Donald Trump might want to take a minute to remember the glitch heard round the world — the talking point Marco Rubio couldn’t stop repeating in a crucial debate, exposing him to devastating ridicule and sending his campaign into a death spiral.

It went like this: “Let’s dispel with this fiction that Barack Obama doesn’t know what he’s doing. He knows exactly what he’s doing.” The clear, if ungrammatical, implication was that all the bad things Republicans claim have happened under President Obama — in particular, America’s allegedly reduced stature in the world — are the result of a deliberate effort to weaken the nation.