(October 22, 2003) - (Little Rock-AP) -- Senators Blanche Lincoln and Mark Pryor voted with the majority yesterday when it came time for final approval of a bill banning what critics call "partial birth abortions." The bill passed on a 64-to-34 vote, and President Bush has said he will sign the bill. A court challenge to the bill is certain. Supporters and foes of the bill say the legislation could alter the future of abortion in America. The bill imposes the strongest limit on abortion since the Supreme Court in 1973 said women could end their pregnancies. The legislation bans a procedure in which a fetus is partially delivered before a doctor punctures the skull. It generally is performed in the second or third trimester, though opposing camps differ on how often it occurs.