Washington delivered a bipartisan salute to the stars — and welcomed back Speaker Nancy Pelosi’s husband following a brutal attack — as lawmakers on both sides of the aisle feted this year’s Kennedy Center Honors recipients. The performing arts institution named for the country’s 35th president presented its most prestigious award to five figures on Sunday: George Clooney, Gladys Knight, the members of U2, Christian pop singer and songwriter Amy Grant and composer Tania León. The Honors recipients are “recognized for their contributions to American culture through the performing arts,” according to the Kennedy Center. For the second year in...