One of the strongest cases for a Rubio nomination is electability. He consistently performs better against Clinton than all of his GOP rivals in hypothetical general election matchups…

It’s one thing for Republicans to know that Clinton is highly likely to be the Democratic nominee. It’s another thing to watch a triumphant Hillary Clinton at a victory rally, side by side with Bill, looking like a dominant political force ready to bulldoze her way into the White House.

Facing the very real prospect of a Hillary Clinton presidency could re-focus the priorities of Republican primary voters. Those who haven’t thought much about electability may suddenly consider it more important. Those who already prioritize electability may decide to consolidate support among one candidate with increased urgency.