Mitt Romney did not distance himself from Donald Trump today, despite the reality TV and real estate mogul's continued skepticism about President Barack Obama's birth certificate.

A top Romney adviser said recently that the presumptive Republican presidential nominee believes Obama was born in the United States and the validity of his birth certificate, which has been released by the White House, should not be a campaign issue.

When asked about Trump's remarks last week questioning whether Obama was born in the United States, Romney said he doesn't agree with everything his supporters believe, but in the coming election he'll need their support.

"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 told reporters on an airplane before taking off for a campaign appearances Tuesday in Colorado and Las Vegas. "But I need to get 50.1 percent or more and I"m appreciative to have the help of a lot of good people."

In an interview with The Daily Beast last week Trump pointed to old promotional material for Obama's publisher that listed the president as being born in Kenya.

"A book publisher came out three days ago and said that in his written synopsis of his book, he said he was born in Kenya and raised in Indonesia. His mother never spent a day in the hospital," Trump told The Daily Beast's Lloyd Grove.

Read more about Trump's latest comments.

Romney is scheduled to appear with Trump in Las Vegas on Tuesday.