Paul Krugman: “To update Samuel Johnson, these days national security is the last refuge of a scoundrel. According to Donald Trump, anything he doesn’t like is a threat to national security. Question his clearly illegal tariffs? You’re a dark and sinister force trying to undermine America. When the New York Times reported on signs that age may be taking a toll on Trump’s stamina, he denounced the reporting as ‘seditious, maybe even treasonous.’”

“But some of America’s allies — and many of us here at home — are becoming increasingly open about saying that the real danger is coming from inside the White House: Trump himself has become the biggest security threat facing the U.S. and, indeed, all the world’s democracies.”