The joke was a reference to accusations that Cosby drugged and sexually assaulted women.
He asks, "Can I have some of the queen's waters?"
In a statement, Matthews offered a mea culpa for the remark.
Chris Matthews was caught on hot mic audio mocking Hillary Clinton and then joking that he should have brought along date rape drugs for his interview with the the former Secretary of State.
A spokesperson for Clinton did not immediately respond to a request for comment, but aides to the former Democratic presidential candidate expressed revulsion and bewilderment over the footage. Also watch the interview.
Uber looking for women drivers in Saudi Arabia
The Saudi ban on women driving has always been an worldwide criticism leveled at the country's wealthy ruling elite. On Friday evening, women will be able to attend a match of the country's popular professional soccer league.
"There are no words". "Hardball" was hosted on CNBC at the time.
Jennifer Palmieri, the Clinton campaign's communication director who was present for the interview, said in a tweet Friday that watching the video of Matthews "makes me feel ill". He once pinched her cheek after an interview, and, in 2008 said, "the reason she's a US senator, the reason she's a candidate for president, the reason she may be a front-runner is her husband messed around". Matthews said to a crew member. "She didn't win there on her merit".
TheCut added that Matthews "has a long history of talking disparagingly about Hillary Clinton".
"Did you see her walk?" A female producer who said he made inappropriate comments in the workplace reportedly received separation-related compensation. "My God is that good".