Sen. Lindsey Graham said that President Trump deserves the benefit of the doubt in the growing controversy over his phone calls with families who have lost loved ones serving in the military.

"All I can say is that there's no doubt in my mind that the president reveres our military and their families, Graham, R-S.C., told reporters Wednesday.

The senator then addressed Trump's phone call with Myeshia Johnson, whose husband, Army Sgt. La David Johnson, was one of four Special Forces killed in an ambush in Niger earlier this month. According to Rep. Frederica Wilson, D-Fla., he overheard the call, Trump said that Johnson "knew what he signed up for ... but when it happens it hurts anyway."

Graham said that he "will not tolerate" any critic saying that Trump doesn't care, but he did concede that Trump may struggle conveying exactly the most appropriate message that he truly means but that it's not an issue that is worthy of being the big story that it has become.

"I don't know what he said to the spouse. I do know where his heart's at, but this is something we should just let go," Graham said.

Graham refused to speculate on what Trump actually said on the call, as Trump and the White House has refuted Wilson's account, but did say that, "If there's any doubt that the president said something inappropriate, call up and say, 'I didn't mean it. I'm sorry.'"

What Graham said he outright didn't like was Trump's suggestion that his predecessor, former President Barack Obama, didn't often make calls to the families of dead service members.

"I don't think that was appropriate," he said, adding that he didn't doubt that Obama's heart broke every time someone died serving under his watch.