Story highlights Harry Reid had said Donald Trump is "not slim and trim"

Trump responded by making a joke about exercise equipment that injured Reid

Washington (CNN) Harry Reid fired back against Donald Trump on Friday, as the two political opponents continue their war of words.

The Senate Minority Leader, a former boxer, often serves as his party's attack dog, and he has pulled no punches when going after the Republican presidential nominee.

"You can't believe anything he says," Reid told CNN's Manu Raju in an interview on Friday directly after Trump said President Barack Obama.

"He is one of the most unbelievably immoral people I've ever heard deal with politics. Here's a man who attacks people of color, women, people's sexual identity, people who are handicapped, I mean what kind of a man would do this?"

Earlier Friday, the Nevada Democrat responded to a slight from the GOP nominee about an exercise accident that blinded Reid in one eye.

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