I see how he might be thinking, that as the field has narrowed, that somehow he can inherit support.
But let’s all remember, that there is no requirement that the nominee at the convention must have been a candidate in the primaries, or still be an active candidate at the time of the convention. They coudo revive Beto O Rourke at the convention if the powers that be chose to do so.
The Dems desperately want his money. Don’t think anyone is going to be willing to be the one to explain this to him
If its a brokered convention, they can vote for any one they want on the second ballot.