by Mark Silva
Candidates who oppose abortion often have been held to the question of whether or not they might make the issue a "litmus test'' for their appointments of federal judges.
Former New York Mayor Rudy Giuliani, who favors abortion rights for women, faces the same question in his campaign for the Republican Party's presidential nomination in 2008.
Campaigning in Council Bluffs, Iowa, on Wednesday, Giuliani said he would not make a judicial nominee's stance on the landmark Supreme Court ruling of Roe v Wade a litmus test.
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