Thanks to Wisconsin Gov. Scott Walker, it’s becoming even clearer that immigration is the banana peel of 2016 Republican presidential politics.
Check it out:

Just ask Florida Sen. Marco Rubio.

He stepped up as a Senate leader on immigration only to slip and fall in a tea party ruckus over the issue. In a moment of candor, Rubio remembered the months of trying to get back up as “a real trial for me.”