TRUMP: 'When you hear about the tough phone calls I'm having, don't worry about it'

President Donald Trump told Americans at a prayer breakfast Thursday not to worry about the "tough phone calls" he's having with world leaders.

Trump's comments came a day after reports surfaced of a phone call he had with Mexican President Enrique Peña Nieto on Friday, during which he supposedly disparaged Mexico and threatened to use military force against the drug trade. A US official later said that the comments were "lighthearted."

"The world is in trouble, but we're gonna straighten it out," he said at the National Prayer Breakfast. "That's what I do. I fix things. We're gonna straighten it out."

He continued: "When you hear about the tough phone calls I'm having, don't worry about it. Just don't worry about it. They're tough. We have to be tough. It's time we're gonna be a little tough, folks. We're taken advantage of by every nation in the world virtually. It's not gonna happen anymore."

Thursday morning, Trump tweeted that Iran has been "formally PUT ON NOTICE" in response to its recent test of a ballistic missile.

"Should have been thankful for the terrible deal the US made with them!" Trump tweeted. "Iran was on its last legs and ready to collapse until the US came along and gave it a life-line in the form of the Iran Deal: $150 billion."