Democratic Rep. Susan Wild (Pa.) conceded her race to Republican challenger Ryan Mackenzie in one of the most closely watched House races in the country. "I lost this election, and my opponent won," Wild said in a statement to supporters Wednesday morning. "There is no sugarcoating it: this is a bitterly disappointing outcome." Mackenzie, a member of the Pennsylvania House, led Wild by more than 5,000 votes when she conceded the race. Wild, a three-term incumbent, was hampered by a series of