Joe Biden, nominee-in-waiting, with a long wait

In the three weeks since his blowout win in the South Carolina primary, Joe Biden has emerged as the Democratic presidential nominee-in-waiting.Biden holds an essentially insurmountable delegate lead over his last remaining rival, Bernie Sanders, yet the Vermont senator remains in the race.“Three weeks ago, we were on the verge of collapse as a campaign, so this is a very recent phenomenon,” said Biden senior adviser Anita Dunn, insisting that the 77-year-old candidate remains focuse