“This is not about gun control, if you think the shooting in California is about gun control, then you don’t understand what’s going on in the world,” Lindsey Graham told reporters after addressing the group. “This is about two people who have bought into an ideology that is absolutely insane in nature and has to be combated.”

RELATED: Senator: ‘This is not a left-wing issue’

A Muslim married couple is believed to be responsible for the shooting deaths of 14 people at the Inland Regional Center in San Bernardino, California on Wednesday, though a motive is not yet known.

“It is possible this is terrorist related, but we don’t know,” President Barack Obama said in statement from the Oval Office on Thursday.

Donald Trump said it seems the attack was “probably” related to “radical Islamic terrorism, and I’ll tell you what, we have a president who refuses to use the term. He refuses to say it. There is something going on with him that we don’t know about.”

Republican 2016 candidates were quick to offer their thoughts and prayers as news of the shooting unfolded. But after the deadliest mass shooting in the U.S. since the Sandy Hook elementary massacre in 2012, some Democrats said words were not enough.

“Your ‘thoughts’ should be about steps to take to stop this carnage. Your ‘prayers’ should be for forgiveness if you do nothing - again,” Democratic Sen. Chris Murphy tweeted.

This has been on the cover far too often. https://t.co/kpSUXcAiOA pic.twitter.com/BrHzTr5zsU — New York Daily News (@NYDailyNews) December 3, 2015