Sen. Lindsey Graham,
struggling in national polling in the GOP presidential primary race, mocks Donald Trump as a "real estate tycoon" in a video released Friday by the super PAC supporting the South Carolina lawmaker.
The approximately minute-and-a-half video, posted on the PAC's website, is titled
"Protect America," and features clips of Graham's urging a more aggressive U.S. fight against ISIS.
A voice at the end warns: "Don't leave fighting terrorism to a real estate tycoon. This is war, not reality TV."