Back on the Bench, the Supreme Court Faces a Blockbuster Term

A transformed Supreme Court returns to the bench on Monday to start a momentous term in which it will consider eliminating the constitutional right to abortion, vastly expanding gun rights and further chipping away at the wall separating church and state.

The abortion case, a challenge to a Mississippi law that bars most abortions after 15 weeks, has attracted the most attention. The court, now dominated by six Republican appointees, seems poised to use it to undermine and perhaps overturn Roe v. Wade, the 1973 decision that established a constitutional right to...