Lindsey Graham Jumps Into 2016 Presidential Race: 'I'm Ready to Be Commander-in-Chief on Day One’ (VIDEO)

"I want to be president to defeat the enemies that are trying to kill us!'

Jabs Clinton: "I have more experience with our national security than any other candidate in this race. That includes you, Hillary"

South Carolina Sen. Lindsey Graham is “ready to be commander-in-chief on day one,” the Republican said, announcing his presidential bid from his hometown today.

"I’m pretty sure no one here, including me, ever expected to hear me say, 'I’m Lindsey Graham, and I’m running for president of the United States,'" he told a cheering crowd in Central, South Carolina.

 Graham, a retired Air Force colonel, enters the race just as a fierce battle over national security rages in the Senate.