U.S. Rep. Mike Coffman said Thursday he plans to revive an effort to force a vote in Congress to extend deportation protections for young immigrants in the country illegally. The Aurora Republican floated the idea last year — then backtracked a few days later — and now said he would try again if federal lawmakers are unable to reach a solution for the immigrants by March 5. Coffman said he would begin working next month to gather 218 signatures needed for a procedure called a discharge petition that would compel the U.S.