Trump-endorsed Sen Lindsey Graham files for re-election: 'Nobody is better prepared'

President Donald Trump endorsed Graham for re-election last year.

But others on the right have backed Graham for re-election. 

The long-serving lawmaker is a staunch supporter of President Trump's decision to launch the war against Iran in conjunction with Israel.

There are some candidates seeking to challenge Graham in the South Carolina Republican U.S. Senate primary.

"Following his filing, Senator Graham was joined by family, supporters, volunteers, and campaign staff at his campaign headquarters in Columbia, where he shared his vision for South Carolina's future and outlined how he plans to continue delivering President Trump's agenda for communities across the state," the release added.

"Nobody is better prepared to help President Trump protect us from evil than I am. Nobody is better prepared to help him get his agenda through the Senate than I am. Nobody running is better prepared to help our state than I am," Graham said, according to the release.