Actor Ben Affleck took a trip to Washington, D.C. to discuss the Democratic Republic of Congo.

Affleck spoke before the Senate Foreign Relations Committee on behalf of the region. The Argo actor and director was accompanied by Russell Feingold, the U.S. special envoy for the Congo; Roger Meece, former U.S. ambassador to Congo; and Dr. Raymond Gilpin, the National Defense University’s academic dean.

Senator John Kerry was one of the many who was scheduled to meet Affleck. He was so impressed that he even tweeted at the Oscar-winning actor.

Affleck founded the Eastern Congo Initiative nearly four years ago.

Met w/ @US_SEGL & fellow @RedSox fan @BenAffleck on #DRC. Both passionate about the issues. #MuchRespectToBenAffleck pic.twitter.com/I0Q5qcSlIp

— John Kerry (@JohnKerry) February 26, 2014

And it turns out, Afleck wasn’t the only star visiting D.C. today.

Funny man Seth Rogen testified before a Senate Appropriations subcommittee hearing on the economics and current state of research of Alzheimer’s disease treatment and prevention.

Rogen and wife Lauren Miller founded Hilarity for Charity to help raise awareness about the disease.

Miller’s mother was diagnosed with Alzheimer’s disease at age 55.

Image Via YouTube