Mike Lee hates Trump. Tom Cotton says, “I will support the GOP nominee” — not an endorsement per se. So it’s doubtful these two wannabes will use Trump’s good advice. Maybe they hope to make a deal before January, to polish their luster. Lots of luck with that.
I’ve seen a lot of tacit support for Trump out of Lee of late. So if there is hate, it is being overridden by political realities and the need to keep a criminal placed above the law for all intents and purposes out of the White House.
And the free trade issue is separate from whatever internecine problems you allude to here. It’s an ineffectual dig at Obama’s “back of the queue” comment, and the problem is with its ineffectuality; if the GOP was not overrun with the liberal RINOs, it might actually have some traction.