Trey Gowdy, the U.S. Representative for South Carolina’s 4th Congressional district is doubling-down on his support for Florida Sen. Marco Rubio’s presidential bid. In this ad, Gowdy specifically focuses on Marco Rubio’s foreign policy stance. He says, “Marco Rubio will be a commander-in-chief who brings back American strength… and that’s why the Democrats fear Marco the most” – an argument Rubio himself makes frequently. Gowdy became popular with conservatives last year, when he became one of the central figures aggressively hounding Hillary Clinton in the Benghazi hearings. National defense is an important issue in South Carolina, which is home to a large cohort of active duty and retired military personnel. Gowdy – who is well liked in his home state – has been one of Rubio’s most active surrogates in South Carolina ahead of Saturday’s primary. Rubio is currently neck and neck with Ted Cruz for a second place finish there – but Donald Trump still holds a commanding lead over the rest of the pack.