Two of the four Republicans vying for the chance to take on U.S. Rep. Scott Murphy, D-Glens Falls (NY-20), grabbed endorsements this week in Saratoga County. Mechanicville went to David Harper, a Saratoga Springs lawyer and the Halfmoon committee chose retired Army colonel Chris Gibson, from Kinderhook. The Saratoga County committee meets next Saturday, March 27, to vote on a candidate.