yeah, good luck in 2020 Republicans
Yeah, Trump losing half of his lead (and nearly a quarter of his total vote, 11%/46%) in this state is terrible news for him/a candidate like him. At this rate, Trump is receiving less than a third of the national popular vote in the Republican primary (still good enough to win Florida, with its very old population, but...).
It actually cements the fact that a certain percentage of Trump supporters will remain Trump supporters after the campaign - if those Republicans, after all of this time, still support Trump over Rubio in Rubio's home state, that is an awful harbinger of where the base of the party wants to move post-election. I mean, who will run on the mantle of Trump in 2020? But what this says at this point in time are that the sane, neverTrump Republicans, like Kasich, are not going to have a snowball's chance in hell to win a primary in 2020.