Many Republicans have worked with the FRC, an influential Christian group founded by Focus on the Family’s James Dobson. Among the group's many issues is opposition to abortion rights.

A security guard was reportedly shot in the arm during the incident. ABC 7, a local station, reported a suspect is in custody.

“The police are investigating this incident,” FRC President Tony Perkins said in a statement released shortly after the shooting. “Our first concern is with our colleague who was shot today. Our concern is for him and his family.”

Rep. Tim Huelskamp (R-Kansas) also tweeted and Rep. Diane BlackDiane Lynn BlackWomack wins initial support to become Budget chairman House Foreign Affairs chairman to retire This week: Clock ticks toward shutdown deadline MORE (R-Tenn.) retweeted the Susan B. Anthony List.

Updated at 2:47 p.m.