MSNBC host Joe Scarborough on Thursday criticized Hillary ClintonHillary Diane Rodham ClintonTrump has discussed possible pardons for three eldest children, Kushner: report McCaskill: 'Hypocrisy' for GOP to target Biden nominee's tweets after Trump Biden budget pick sparks battle with GOP Senate MORE's campaign for its defense of the Clinton Foundation after the Democratic presidential nominee's spokesman argued the foundation is needed to fight the AIDS crisis.

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Clinton spokesman Brian Fallon defended the foundation and its work on "Morning Joe," saying more than half of the people in the world receiving AIDS drugs got them through the Clinton Foundation.

"So, no, the Clinton Foundation will not be completely shuttering its work even if Clinton wins the presidency — and for good reason. They want to continue this work," Fallon added.

"If any American voter is troubled by the idea that the Clintons want to keep working to solve the AIDS crisis on the side while Hillary Clinton is president, then don't vote for her."

"That is so pathetic. You all are not really that pathetic, are you?" the "Morning Joe" host shot back.

"You're going to actually say that if Bill ClintonWilliam (Bill) Jefferson ClintonBookExpo organizers 'retiring' event Harris selects Tina Flournoy as chief of staff: report One-termers: What Trump can learn from Carter and Bush's re-election losses MORE doesn't have the opportunity to shake down billionaires, that AIDS will not be cured?" he asked.

Scarborough went on to mock Fallon's defense.

"If we're keeping score at home, Barack ObamaBarack Hussein ObamaObama chief economist responds to McConnell quoting him on Senate floor: He missed 'a critical part' Amazon reports .8B in weekend sales from independent businesses on its platform Ossoff features Obama in TV ad ahead of in Georgia run-off MORE is Moses and has the ability to stop the tides from rising in our time?" he said.

"And Bill Clinton, shaking down billionaires in Kazakhstan, while doing deals on the side and getting paid $550,000 for a one-hour speech, that's our only path forward to curing AIDS?"

"You're not really that pathetic, are you? Because if that's the best line of attack you have, you need to go back to middle school and start all over again."