Do you have some information that I, or LifeNews, doesn't have to back that up?
http://www.nationaljournal.com/politics/trump-s-flip-flop-on-abortion-20110215
Trump took the opposite position in 1999, when he considered running for president as a Reform Party candidate:
He raised the issue in the fall of that year when he announced on NBC’s Meet the Press that he was quitting the Republican Party. "I hate the concept of abortion, but I am strongly pro-choice," Trump said, adding that he would not favor a ban on so-called partial-birth abortion.
http://www.issues2000.org/celeb/Donald_Trump_Abortion.htm
Trump clarified his views on abortion, saying he favors abortion rights, but respects those who oppose his position. “I believe it is a personal decision that should be left to the women and their doctors,” he said.
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And now that Trump, like Romney, suddenly needs the votes of social conservatives to get what they want, what a shock - they claim they had a sudden conversion years ago to a pro-life position - that no one knew about.
You can believe that if you want. I don't. Romney taught us the ways of the flip-flopping weasel. Don't waste the lesson.