Commentary Will the marathon Biden press-conference on Wednesday of last week—the day before the first anniversary of the president’s inauguration—some day be seen as a watershed, not only in the fortunes of his administration but in those of the new American revolution of which he’s now the increasingly implausible figurehead? Of course, it’s too early to tell, as such things always are, often until years later. But there are a few early warning signs that the revolution, which began with the so-called “Resistance” to President Donald Trump, may finally be faltering. Chief among these signs is the leader’s announcement to his demoralized Democrat and media troops, nervous as they must be about his and their precipitous slide in the public opinion polls, that everything in the revolutionary garden is just lovely. In that press conference, he said this: “It’s been a year of challenges, but it’s also been a year …