Jimmy Higgins said:
What I don't get about Adelson is that Rubio is a newcomer. He isn't established, yet billionaires seem content putting huge amounts of cash on them like they were horses in a race.
I think a lot of these guys operate on whom they like personally. Some, like the Kochs, seem to be a bit more strategic, but these big wallets also mean big egos, and big egos often mean going with their gut rather than what some numbers nerd says.
Also, fivethirtyeight.com seems to think Rubio is a very strong candidate for a variety of reasons, namely he is well liked accross the GOP spectrum, if not always (or even often) the first choice. People like Bush and Christie and Paul and Cruz have their fanatical supporters, but also their fanatical enemies. Rubio doesn't seem to have any enemies. (except facts, consistency and dry throat)