John Fetterman, the mayor of Braddock, Pa., right, and a Democratic Party candidate for the U.S. Senate, carries his 18-month-old son August, as he walks with his wife, Gisele Fetterman, to vote on the morning of the Pennsylvania primary election, Tuesday, April 26, 2016 in Braddock, Pa. Four Democrats, including Fetterman, are running for the nomination to challenge Republican U.S. Sen. Pat Toomey in November.
