<p>After a year in which liberals scored impressive, high-profile Supreme Court victories, conservatives could be in line for wins on some of this term's most contentious issues, as the justices consider cases that could gut public sector labor unions and roll back affirmative action at state universities.</p><p>However, as the court's new term kicks off Monday, uncertainty surrounds several other politically potent cases that could wind up on the court’s agenda.</p><p>Litigation over state efforts to limit abortion by regulating clinics and doctors is making its way to the high court.