So the responsible thing for a U.S. president to do, in these circumstances, is to have the backbone to stand up against Russian interference in U.S. democracy — not to question, as Trump did on Thursday, the competence of our own intelligence community and to publicly doubt, once again, the conclusion that Russia was behind the hacking. Trump talks big on Twitter, but when he came face to face with Russian President Vladimir Putin on Friday, we heard him say what an honor it was to meet him. It has been reported that Trump asked Putin about the election hacking, giving Putin the chance to issue an obligatory denial, despite all the evidence gathered by the U.S. intelligence community. One can only hope that Trump made clear to Putin that the United States won't tolerate continued Russian interference in elections, as we've seen in the United States, France and now in Germany and across Europe. (This is one conversation that it would be nice to have a tape of.)