LAS VEGAS — U.S. Rep. Dina Titus has won re-election in Nevada’s 1st Congressional District, defeating Republican challenger Mark Robertson with 51 percent of the vote to Robertson’s 46 percent. Titus, a Democrat and longtime representative of Las Vegas, emphasized her record on issues like healthcare access, economic relief, and veterans’ services during the campaign. Robertson, a retired U.S. Army colonel, ran on a platform of fiscal conservatism and stronger border security. Titus’s win secures her another term in Congress as Nevada’s delegation largely holds steady.