Columbia / AP After a week of bitter attacks, Republicans face off in South Carolina’s presidential primary, a contest that could determine Donald Trump’s strength as a front-runner and help clarify whether a more mainstream politician will ever emerge to challenge him. Democrats are holding a caucus on Saturday in Nevada, the first test for Hillary Clinton and Bernie Sanders …

Washington / Bloomberg President Barack Obama and thousands of other mourners paid respects to the late Justice Antonin Scalia as his flag-draped casket lay in the US Supreme Court’s ceremonial hallway. Pallbearers carried Scalia’s casket up the court’s marble staircase into the building as his somber, and in some cases tearful, former colleagues waited along with family members, former law …

Bloomberg The US Supreme Court cleared the way for a new congressional voting map in North Carolina this year, rejecting a Republican bid to reinstate district lines thrown out by a lower court. The order was one of the high court’s first since the death of Justice Antonin Scalia. It came without published dissent. A three-judge panel said Feb. 5 …