According to CBS, a spokesman for the Romney campaign simply referred to remarks made by the presumptive Republican nominee during an April 2011 interview with CNBC's Larry Kudlow.
"I believe the president was born in the United States," Romney told Kudlow. "The man needs to be taken out of office, but his citizenship isn't the reason why."
On Wednesday, the Romney campaign announced a fundraising contest with a prize package that includes dinner with Trump. Additionally, Trump is slated to appear at a campaign event with Romney on Tuesday at the real estate magnate's Las Vegas hotel.