It's going to be a busy primary in Colorado's Fifth Congressional District.

Two more Republicans say they will campaign to replace Congressman Joel Hefley.

They are state Senator Doug Lamborn and a former administrative director for Hefley, Jeff Crank.

The six-county district is heavily Republican.

Former El Paso County Sheriff John Anderson is already seeking the G-O-P nomination.

The only Democrat in the race so far is Jay Fawcett, a former Air Force Academy professor and Gulf War veteran.

Hefley said last week he won't seek and 11th term.