President Trump’s proposed wall along the United States-Mexico border has soared in popularity with American voters across the board, as he battles a split GOP-Democrat Congress to secure funding for the barrier. The latest ABC News/Washington Post poll reveals a major shift among nearly all demographic groups across the country when it comes to support for a border wall at the southern border. This time last year, the poll claimed that only 34 percent of voters supported a wall at the U.S.-Mexico border. Today, support for the wall has climbed to 42 percent overall. Most notable, swing voters are increasingly...