The Supreme Court returns to its courtroom Monday for its first in-person arguments since March 2020, opening a term featuring challenges to abortion rights, gun regulations and a secular public-school system. The term will be the first with Justice Amy Coney Barrett present in the seat once held by Justice Ruth Bader Ginsburg. Her death in September 2020 opened the door for Republicans, then controlling the Senate appointment process, to solidify the court’s conservative majority.