The country has obviously changed significantly since there is now a black President and had he not run, the current President would likely have been a woman. Republican criticisms on Romney are scarcely down to his Mormon beliefs and grounded in his lack of hardcore conservative credentials (whatever that means) when contrasted to views of say, Cain or Perry. The belief that Romney is disqualified due to being Mormon is largely a Red Herring that's being perpetuated by certain members of the press in order to provide a shallow analysis of the situation. Furthermore, there have been plenty of non-"Baptist" Presidents. Recent ones that come to mind are both Bushes, Reagan, Ford, Nixon, and so on.
Sorry I meant to say Protestant, excuse my dyslexia, that's what I get for not googling. But it would seem that this claim is a bit of an urban legend, because there are apparently 3 Quakers, and I'm not sure if the 4 Unitarians count, they called themselves Protestants originally it seems, but perhaps as they are now they don't count. And our 1 Catholic.
I just don't see your average reactionary sort of republican, who expects Jesus to scorch the earth in their lifetime, voting for a Mormon, even if they would vote for a Catholic. Mormonism isn't much respected here, it's a big joke, like Scientology. I guess I think we've made more progress with racism and sexism than religious prejudice.
Disciples of Christ [Protestant]
James Garfield
Lyndon Johnson
Ronald Reagan
Baptist [Protestant]
Warren Harding
Harry Truman
Jimmy Carter (Southern Baptist)
Bill Clinton (Southern Baptist)
Dutch Reformed [Protestant]
Martin Van Buren
Theodore Roosevelt
Protestant Episcopalian
George Washington
James Madison
James Monroe
William Henry Harrison
John Tyler
Zachary Taylor
Franklin Pierce
Chester A. Arthur
Franklin D. Roosevelt
Gerald Ford
George H. W. Bush
George W. Bush (later Methodist)
Methodist [Protestant]
James Polk (originally Presbyterian)
Ulysses Grant (allegedly; his theology is unknown)
William McKinley
George W. Bush (originally Episcopalian)
Presbyterian [Protestant]
Andrew Jackson
James Polk (later Methodist)
James Buchanan
Grover Cleveland
Benjamin Harrison
Woodrow Wilson
Dwight D. Eisenhower
Ronald Reagan (also Disciples of Christ)
Quaker
Herbert Hoover
Richard Nixon
Roman Catholic
John F. Kennedy
Unitarian [called themselves Protestants originally]
John Adams
John Quincy Adams
Millard Fillmore [converted from Presbyterian as adult]
William Howard Taft
United Church of Christ [Protestant]
Barack Obama
[Edit: These are listed as non-specific Christian, didn't see them before:
No denominational affiliation:
Thomas Jefferson (Deist or Unitarian)
Abraham Lincoln (attended Presbyterian services)
Andrew Johnson (born Baptist, went to Methodist and Catholic mass)
Rutherford Hayes (came from a Presbyterian family, but attended Methodist schools as a youth, often listed as Methodist).
Anyway, they all made a point of identifying with a Protestant religion.]
Religious affiliations of Presidents of the United States - Wikipedia, the free encyclopedia