“It’s very bad,” the Republican senator said. “This performance with our friend out in Phoenix is very hurtful to me,” McCain said. “Because what he did was he fired up the crazies.”

Trump’s latest polling numbers would seem to suggest that his message is resonating with Republican voters.

McCain, a longtime supporter of comprehensive immigration reform as a member of the Senate’s Gang of Eight, noted his battles with the far right, “very extreme element” of his state’s party over the years on the issue…

The senator also made sure to mention that Florida Sen. Marco Rubio, another Gang of Eight member running for president, “backed away” from the immigration approach that the group took in 2013.