I just don't think that will be a thing, but there are of course will be some worry about fence sitters who enrich themselves by pandering to the left, ala Kerry and Clinton. Beto sounds a bit like Kerry, fairly charming, capable guy who marries into wealth. That said, Beto sounds articulate, authentic, and likable on a grand scale, and he might be a good messenger for what policy platform the democrats at large decide on; a lot of Bernie's policy was adopted during the Democratic Convention and Clinton played her part afterwards.