By Gram Slattery WASHINGTON (Reuters) - Several Republican presidential candidates praised restrictions on abortion rights at a conference of Christian conservatives on Friday, illustrating how the issue still animates the party one year after the U.S. Supreme Court struck down nationwide constitutional protections for the procedure. Former Vice President Mike Pence, who has emerged as one of the party's most vocal and high-profile opponents of abortion rights, called on all candidates to support a federal ban on abortions after 15 weeks of gestation if elected. "I want to say from my heart, e...
