As he has so many times since bursting onto the presidential stage in 2015, Donald Trump played the race card on Sunday. He launched nearly three dozen broadsides on Twitter throughout the day, but a trio of his tweets stood out because they demonstrated how casually he likes to uncork his venom and how unwilling the Republican Party is to contain him. Trump was targeting four new Democratic congresswomen of color (nicknamed “The Squad”) who have become ubiquitous advocates for progressive policies and occasional thorns in House Speaker Nancy Pelosi’s side: Alexandria Ocasio-Cortez of New York, Ilhan Omar of Minnesota, Ayanna Pressley of Massachusetts and Rashida Tlaib of Michigan. Omar is from Somalia and is now a naturalized U.S.