How Tara Reade's allegations could bring down Joe Biden

Earlier this month, I wrote a column asking what Democrats should do about sexual assault allegations against Joe Biden, the party's presumptive nominee for president. My answer? Not much. The accusation made by Tara Reade, a former Biden staffer from his days in the Senate during the early 1990s, didn't strike me as especially convincing, so Democrats, I suggested, could move forward without much concern. Though toward the end of the column I included two caveats: If Reade offered further corroboration of her claims or if evidence emerged of a...