Segnosaur
Penultimate Amazing
Your cynicism/suspicious are certainly warranted, given the similarity between the situations.Credibility is a thing. His candidacy gives me flashbacks to the 2016 WV Governors race where a billionaire named Jim Justice, a former Republican, ran as a Democrat and made the same sorts of noises. He bought the nomination with crazy spending in an open primary state and squeaked through the general.
About a year later he, on stage with Trump, declared his return to the GOP.
It should be noted however that in the case of Jim Justice, it appears as if his temporary switch to the Democrats was something that occurred just prior to his political run.
On the other hand, while Bloomberg had been a republican at one point, he appears to have been drifting away from their party for some time (even endorsing Obama.) He's supported abortion rights, action on climate change, and gun control. Whether he HAD been a republican in the past, his policies would mean he doesn't fit in the Republican party of today.