The Service Employees International Union endorsed three Colorado Democrats running for Congress: state House Minority Leader Sal Pace, state Senate President Brandon Shaffer and state Rep. Joe Miklosi.

Pace is challenging freshman Rep. Scott Tipton (R), Shaffer is running against freshman Rep. Cory Gardner (R) and Miklosi is taking on two-term Republican Rep. Mike Coffman. With redistricting now in the courts after a state Legislature stalemate, it’s still unknown how competitive each district will be.

SEIU represents 10,000 health care workers, janitors and public employees in Colorado.