Trump said Monday the story was "becoming a much bigger deal now than before the election."
"It didn't resonate with the voters," Trump said. "I think part of that was Mitt Romney, who we all know and is a wonderful man, in that third debate didn't make a big deal out of it. I almost fell out of my seat."
The real estate mogul and reality television host also blasted the president's foreign policy approach to ongoing challenges in Iraq and Syria.
"Anywhere we're involved, we're a joke; we're a laughingstock," Trump said.