(CNN) – Mitt Romney said Monday he wasn’t concerned about Donald Trump’s commitment to the “birther” conspiracy, one day before the GOP presidential candidate hosts a fund-raiser alongside the celebrity business magnate.
Asked on his charter plane whether Trump’s questioning of President Barack Obama’s birthplace gave him pause, Romney simply said he was grateful for all his supporters.
“You know, I don't agree with all the people who support me and my guess is they don't all agree with everything I believe in,” Romney said. “But I need to get 50.1% or more and I'm appreciative to have the help of a lot of good people.”
Romney has said in the past that he firmly believes Obama was born in Hawaii, and is thus constitutionally eligible to be president.
Trump, however, is decidedly less sure. The “Apprentice” host has been a vocal proponent of the “birther” conspiracy going back several years, at one point claiming he had “investigators” looking into Obama’s records in Hawaii. Obama released the long-form version of his birth certificate in April 2011, showing he was born in Hawaii on August 4, 1961. Soon after it was released, Trump announced he would not make a bid for the GOP presidential nomination.
Trump will join Romney and former presidential candidate Newt Gingrich for a campaign fund-raiser in Las Vegas on Tuesday evening. Romney's campaign also is raffling a chance to have dinner with Trump for supporters who donate $3 to the campaign.
"I want you: Dine with the Donald," a campaign flier proclaims, along with a drawing of Trump in the pose of Uncle Sam.
The campaign offers: "Airport transportation in the Trump vehicle; Stay at the Trump International Hotel & Tower New York; Tour the Celebrity Apprentice Boardroom; Dine with Donald Trump and Mitt Romney."
Trump’s questions about Obama’s birthplace resurfaced Friday in an interview with The Daily Beast.
"Look, it's very simple," Trump said in the interview. "A book publisher came out three days ago and said that in his written synopsis of his book."
The interview continued, "He said he was born in Kenya and raised in Indonesia. His mother never spent a day in the hospital."
Trump was referring to literary agency that, in a promotional catalogue from the 1990s, listed Obama has having been born in Kenya. An employee of the agency recently acknowledged that it was her mistake.
Trump isn't buying it.
"Now they're saying it was a mistake," he told the Daily Beast. "Just like his Kenyan grandmother said he was born in Kenya, and she pointed down the road to the hospital, and after people started screaming at her she said, 'Oh, I mean Hawaii.' Give me a break."
CNN’s Rachel Streitfeld and Kevin Liptak contributed to this report.