Failed presidential candidate and Arizona Senator John McCain said that Donald Trump's rhetoric was only serving to turn the Muslim community against the United States.

“Oh, I think it has an interesting effect of turning Muslims all over the world against the United States of America, which is 99.44 percent people who practice an honorable religion,” the Arizona senator said of Trump on CBS’s “Face the Nation” on Sunday.

McCain also said that the 2016 candidates were "harping" on the Syrian refugee crisis instead of more "substantial" threats.

“As all of our candidates bloviate about the refugees, [Syrian President] Bashar Assad is a major cause of the refugees which are now flooding Europe and causing such consternation in the United States,” he said. “A no-fly zone will provide a refuge at least for some of these refugees.”

McCain also said the longer ISIS remains in power, the more powerful it will become.

“And by the way, the fact that is we can succeed here and ISIS is not that strong, but the longer they stay in power, the more this poison spreads and metastasizes from as far away as Afghanistan, Africa, and other parts of the world,” he said.

Donald Trump is no fan of Senator John McCain. Back in July, Trump said McCain was only considered a war hero because he was captured.

"I like people who weren't captured," said Trump.