Rep. Mark Sanford, R-S.C., walked the red carpet at CNN’s “Crossfire” launch party in Washington, D.C., on Tuesday night with his fiancee, Maria Belén Chapur, on his arm.

Chapur, memorably, is the woman who was at the center of his 2009 extramarital affair when he was governor.

But Sanford and Chapur were only two of the attendees of the A-list party.

Republican Reps. Darrell Issa of California and Raúl R. Labrador of Idaho and Democrats Rep. Debbie Wasserman Schultz of Florida and Sen. Amy Klobuchar of Minnesota also made the rounds. Former Sen. Rick Santorum stopped by after taping an appearance on the show’s second episode Tuesday evening.

Caroline Kennedy, Greta Van Susteren and Laura Ingraham were also among the well-known attendees at the swanky celebration at the Carnegie Library.

“CNN has its swagger back,” as one network executive put it to HOH.

CNN President Jeff Zucker told the Capitol Hill-centric crowd that when he was named head of the company late last year, he had two priorities: to bring back actor James Earl Jones’ marketing voice-overs and to resurrect the debate show.

All four “Crossfire” hosts — Newt Gingrich, Stephanie Cutter, Van Jones and S.E. Cupp — addressed the crowd. Cupp rattled off a number of observations about her move to Washington, most notably comparing Arlington, Va., to Hoboken, N.J.

CNN talent only stuck around for the early evening — most had to rush back to the bureau to cover President Barack Obama’s address to the nation on Syria. CNNers in attendance included Wolf Blitzer, Gloria Borger, Candy Crowley, Brianna Keilar, Erin McPike, Jake Tapper, Jessica Yellin, Washington Bureau Chief Sam Feist, Michelle Jaconi and “Crossfire” Executive Producer Rebecca Kutler.

Operatives from nearly all of the campaign committees were there — with especially strong contingents from the Republican National Committee and the Democratic National Committee.

Disclosure: Livingston is a former CNN producer.