Giuliani on the abortion decision.

He supports it:

Former New York Mayor Rudy Giuliani (R), who in the past has supported a woman’s right to a form of late-term abortion, Wednesday joined in the chorus of Republican presidential candidates hailing the Supreme Court decision upholding the ban of the procedure.

“The Supreme Court reached the correct conclusion in upholding the congressional ban on partial birth abortion,” Giuliani said in a statement on the 5–4 decision. “I agree with it.”

When Giuliani ran for Senate in 2000, he said he would not vote to restrict a woman’s right to undergo the procedure.

This is not a contradiction. You can be on the losing side of a legislative choice and still believe that it was constitutional. Giuliani consistently demonstrates a strong commitment to separation of powers. Just as the judges aren't supposed to strike down a law simply because they would have voted against it had they been legislators, a political candidate can support a judicial decision that upholds legislative power, even if that legislative power was used to enact a statute he would have voted against.