The Paris Olympics begin on July 26, and Democrats are ready. They've been performing mental gymnastics for the last month. The party and its media allies deserve medals in political contortion. In the space of a few weeks, they've gone from saying that Joe Biden is the next FDR, to Biden is fine, how dare you question his age, to Biden is incapable of serving a second term, to Biden is a stubborn old man who will sink the party, to Biden is a demigod whose selflessness will be recalled for centuries. Keeping up with the changing party line is exhausting. Not long ago, remember, it was considered a slur to suggest that Joe Biden was too old and infirm to be reelected president.