Republican Sen. Mark Kirk of Illinois was caught on a hot mic at a Senate Appropriations Committee mark-up joking that his fellow Republican Sen. Lindsey Graham is a "bro with no ho."
The moment, which was first captured by the Huffington Post, came during an amendment vote during the over three hour mark-up for the Defense Appropriations Bill.
In the audio recording, Kirk can be heard saying "I've been joking with Lindsey...He's going to have a rotating first lady. He's a bro with no ho."
Graham and Kirk sit next to each other on during Appropriations Committee hearings.
Graham, who is not married, said in an interview this week that he would have "a rotating first lady" if he was elected President.
"Well, I've got a sister, she could play that role if necessary," Graham said.
Kirk would not answer questions from reporters after his comments (even related to other subjects), but a spokeswoman for Kirk said, "This was a joke between friends."
In a brief statement, Graham said "Sen. Kirk said he regrets the comments. I believe that is the appropriate response."
The comment isn't going unnoticed by Kirk's political foes.
His 2016 Democratic Senate oppponent, Rep Tammy Duckworth, has bought the website brosforkirk.com. It redirects to a fundraising website for Duckworth.