(CNN) - Maryland Gov. Martin O'Malley on Sunday chastised Mitt Romney for his birth certificate joke, adding that the comment was reflective of a wider dilemma the Democratic governor sees within the GOP.
"I think that their party in fact is a party that has a problem ... with being an exclusive party," O'Malley said on CNN's "State of the Union."
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He argued Republicans make "comments about women's rights, about immigration, about even basic voting rights" that reflect outdated views.
O'Malley took issue with Romney making a remark about his birth certificate while in the presumptive GOP nominee’s home state of Michigan on Friday.
"I love being home in this place where Ann and I were raised, where both of us were born. Ann was born at Henry Ford Hospital; I was born at Harper Hospital. No one has ever asked to see my birth certificate. They know that this is the place that we were born and raised," Romney said, drawing cheers from the crowd.
Some Democrats pounced on the comment, calling it an out-of-touch knock against the president that fuels claims by those who question where President Barack Obama was born. The president, answering those attacks, released his long-form birth certificate last year confirming he was born in Hawaii.
Romney later said the comment was "not a swipe" at Obama and that he firmly believes the president is a U.S. citizen.
"He was born in the U.S. This was fun about us and coming home, and humor - you know, we've got to have a little humor in the campaign as well," Romney said in a CBS interview.
Along with Friday's birth place comment, O'Malley pointed to a controversial statement made during Romney's London trip in late July, which O'Malley incorrectly attributed to Romney. The remark was reportedly made by an unnamed Romney adviser.
"We are part of an Anglo-Saxon heritage, and he feels that the special relationship is special," the adviser is quoted in The Daily Telegraph as saying. "The White House didn't fully appreciate the shared history we have."
Some argued the comment was racially charged, but Romney said the remark did not come from him, nor did it reflect his views.
O'Malley, however, said the comments, paired with Romney's immigration policies, were representative of views that are behind the times.
"I think that what it reveals is a sort of perspective on America that would take us back to the days of Ozzie and Harriet rather than recognizing that we are in fact a strong people, because we are a diverse people," the governor said, referring to a television sitcom that aired during the 1950s and 1960s.
O'Malley also pointed to former Florida Gov. Jeb Bush, a Republican who said Sunday that the GOP needed to appeal to the party’s changing demographics.
"Long-term, conservative principles, if they're to be successful and implemented, there has to be a concerted effort to reach out to a much broader audience than we do today," Bush said on NBC's "Meet the Press."