Mike Coffman

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FILE - In this Nov. 8, 2016, file photo, Rep. Mike Coffman, R-Colo., gives his victory speech at the Colorado Republican election night party in Greenwood Village, Colo. Democrats hope to enlist military veterans in another type of fight _ for majority control of the House. Outside Denver, former Army Ranger and combat veteran Jason Crow, a onetime campaign adviser to President Barack Obama, is running for the seat held by another veteran, five-term representative Coffman.(AP Photo/Jack Dempsey, File)

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Cindy Fandhu, front right, holds her 18-month-old daughter, Jocelyn, as they wave to supporters during a protest outside the office of U.S. Rep. Mike Coffman, R-Colo., over the health care overhaul bill up for a vote in the U.S. House Thursday, May 4, 2017, in Aurora, Colo. (AP Photo/David Zalubowski)

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"The retaliatory culture, where whistleblowers are castigated for bringing problems to light, is still very much alive and well in the Department of Veterans Affairs," said Rep. Mike Coffman, Colorado Republican. (Associated Press)

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Rep. Mike Coffman, Colorado Republican, said VA bonuses should be given for exceptional work, "not just pushing paperwork." (Associated Press)

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Mike Coffman, Colorado Republican said he expects a "critical mass" of whistleblowers to help in a probe mismanagement of the VA's procurement system. (Associated Press)

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Incumbent U.S. Rep. Mike Coffman, R-Colo., right, looks on as his Democratic challenger, Andrew Romanoff, makes point as they debate in Spanish in the studio of a television station in Denver on Thursday, Oct. 30, 2014. (AP Photo/David Zalubowski)

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Rep. Mike Coffman is among the military veterans in Congress who will gather Wednesday for a patriotic salute to the nation's vets. (Associated Press)

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Tom Sullivan, who's son Alex was killed in the 2012 Aurora movie theatre massacre, speaks at a rally against gun violence in front of Republican Congressman Mike Coffman's office, in Aurora, Colo., Wednesday April 23, 2014. Sullivan and other parents of Aurora theater shooting victims urged Coffman to support universal background checks in Congress. (AP Photo/Brennan Linsley)

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Lonnie Phillips, right, and his wife Sanday, who's daughter Jessica Ghawi was killed in the 2012 Aurora movie theatre massacre, speak at a rally against gun violence in front of Republican Congressman Mike Coffman's office, in Aurora, Colo., Wednesday April 23, 2014. The Phillips and other parents of Aurora theater shooting victims urged Coffman to support universal background checks in Congress. (AP Photo/Brennan Linsley)

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Tom Sullivan, second from right, who's son Alex was killed in the 2012 Aurora movie theatre massacre, attends a rally against gun violence in front of Republican Congressman Mike Coffman's office, in Aurora, Colo., Wednesday April 23, 2014. Sullivan and other parents of Aurora theater shooting victims urged Coffman to support universal background checks in Congress. (AP Photo/Brennan Linsley)

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Democrat Andrew Romanoff has raised more than his Republican rival, three-term incumbent Rep. Mike Coffman, in Colorado. (ASSOCIATED PRESS)

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"Proper tracking of surgical implants is a problem that has been unresolved for far too long and it must be remedied posthaste," said Rep. Mike Coffman, Colorado Republican and chairman of the House Veterans' Affairs oversight subcommittee. (ASSOCIATED PRESS)