Mitt Romney was pro-choice for over 30 years. He supported Roe v Wade as the law of the land. He spoke out on numerous occasions in defense of a womans constitutional right to have an abortion. IMO, that is being adamantly pro-abortion. Period. Changing your position and becoming pro-life is great. More people should make the switch. However, changing your position on the eve of a GOP presidential primary race is called, engaging in political expediency. Which is something Romney has engaged in his whole life on issues ranging from abortion, to gay rights and gun control.
I know about Mitt Romney’s political evolution. I see it as Romney being unbound from the restraints of the realities of GOP Massachusetts politics. The national stage is much more conservative friendly.