Tancredo’s biggest regret - the continuing imprisonment of Ramos and Compean

By repeatedly making provocative statements during his 10 years in Congress, Tom Tancredo believes he spurred activism and helped block legislation that would have allowed illegal immigrants to eventually gain legal status.

"I have a sense of accomplishment. It makes me feel good," said the Colorado Congressman.

Tancredo leaves office this month. He plans to consult and to continue work on immigration issues and to spend time with his grandchildren.

Tancredo said he regrets not succeeding in his effort to help win release of U.S. Border Patrol agents Ignacio Ramos and Jose Compean, who are serving time in prison for shooting and wounding a drug smuggler.

"I think about those guys in prison, and I'm just sick at heart," Tancredo said. "I've done everything I can."

When he left Capitol Hill for the last time in late November, Tancredo gathered with his staff. As they exchanged goodbyes, Tancredo offered his version of high praise.

"We really started something," Tancredo said.