 This means the delegates will need to hold a vote by the 7th of August, a virtual ballot that takes place before the convention. But until Biden's TV appearance at the end of June, this wasn't perceived as being much of a problem as there wasn't really anyone standing in his way. Biden is the incumbent president. And in this case, there were a couple of other contenders who stepped up to run, but there weren't really a serious contender, somebody who really had influence.