Ariana Bacle
September 30, 2015 AT 02:17 PM EDT

A few Real World and Road Rules veterans gathered together on Capitol Hill Monday to support fellow alum Sean Duffy, who made his MTV debut on The Real World: Boston in 1997 and is now a Wisconsin congressman, and honor the late Diem Brown.

Brown appeared on multiple seasons of MTV’s The Challenge, and died in November 2014 after a long battle with ovarian cancer. Duffy launched the Ovarian Cancer Caucus Monday, and discussed the cause on his Twitter: “The bipartisan caucus is important to advancing the cause in Congress to silence the silent killer,” he tweeted. “We need to re-energize our focus and our efforts as a society to beat this cancer.”

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The Challenge’s Laurel Stucky, Road Rules‘ Derrick Kosinki, The Real World: San Francisco‘s David “Puck” Rainey and Rachel Campos-Duffy, and The Real World: New York City‘s Norman Korpi were among the MTV alumni who came out to support Duffy. See photos from the reunion below.

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