Christie would have a better chance if he ran as a democrat, the Dems are desperate, then he wouldn’t have to pretend and could have his wish of challenging the hildebeast.
NJFatboy would get some blue collar Dem votes, but I think the hard core commie activist wing that rules the primaries would shun him.
Bush would be even better as a Democrat. I haven’t heard him take any position that isn’t the same as Hillary.