Republican Rick Wilson to HBO's Bill Maher: 'Donald Trump doesn't have the standing to lick John McCain's boots'

On Friday, John McCain announced that he will no longer take treatment for his brain cancer.

On HBO's Real Time with Bill Maher, the host asked his panel to discuss McCain and his long-simmering feud with fellow Republican Donald Trump.

"Why is the military standing behind this man?" Maher asked of Trump, reeling off a long list of his slights to the military.

David Corn of Mother Jones said Trump is a coward.

"He's afraid to—I mean, seriously, he's afraid to go overseas to Afghanistan or to any place, any theater of warfare where our people serve bravely and at some risk," Corn said.

Republican strategist Rick Wilson said McCain could be a "bastard" but that he served bravely and honoraably

"John McCain faced torture in the Hanoi Hilton for five-and-a-half years and Donald Trump doesn't have the standing to lick his boots."

Watch below.