 So let's bring in Mary Bruce. She's live in Las Vegas tonight. Mary, the Democratic National Committee, the DNC, begins meeting this Friday, right after this convention behind me here. Then the slow march to nominate President Biden begins with some 4,000 delegates, the virtual roll call next week. So we've heard what Nancy Pelosi has said, Mary, that she awaits President Biden's decision. We saw what key donor George Clooney has said. Now Congressman Adam Schiff's warning about Biden atop the ticket. But what would stop President Biden at this point? Is he determined to be the nominee?