Some endorsements are being made in the Republican race for the 5th Congressional District seat.  Party endorsed candidate Manny Santos is being backed by the Connecticut Citizens Defense League.  Challenger Rich Dupont picked up the endorsement of the last Republican to represent the district, Nancy Johnson.  The third challenger, Ruby Corby O’Neill was endorsed yesterday by state Representative William Petit.  The sole survivor of a triple-fatal home invasion was asked to consider a run for the position, but declined.