The 2012 Benghazi attack has become a rallying point for many conservative figures in the news media, but only a handful of Republicans in Congress have continued to call public attention to it. Just six members of the House and Senate mention it regularly in official statements.

All are Republican, and two lead the way. Representative Frank Wolf of Virginia has issued 27 news releases on the subject in the past year, and Martha Roby of Alabama, who chaired a House Armed Services subcommittee investigation into the attack, has sent out 21. Mr. Wolf and Louie Gohmert of Texas have spoken about Benghazi the most in speeches on the House floor.

In the Senate, the Republican threesome of John McCain of Arizona, Lindsey Graham of South Carolina and Kelly Ayotte of New Hampshire, who often speak from the same playbook on foreign policy, are among those who talk about Benghazi the most, along with fellow Republicans Susan Collins of Maine and Ted Cruz of Texas. Almost no Democrats in either chamber talk about Benghazi in official speeches or news releases, aside from a few members of the House and Senate intelligence committees.