Former NY Mayor Michael Bloomberg is looking at a third party run for President. He can self fund a $1 billion campaign and at a time where there is disdain for the establishment parties he could do quite well.
Bloomberg has been a Democrat and a Republican. He is broadly economically conservative and socially liberal. He could well do as well or better than Ross Perot did in 1992.
I an’t see him winning the presidency, but he could win several states, and deny a majority in the electoral college to the GOP and Democratic candidates.
If that occurred, then the House of Representatives would elect the President, and it would almost certainly be the Republican candidate.
So overall Bloomberg standing may be a bigger risk to the Democrats.