DENVER — It’s a local race with national implications, one of the most expensive House races in America ... and one that could help decide which political party controls Congress in 2019.

Rep. Mike Coffman has served Denver’s suburbs in Colorado’s 6th Congressional District for a decade, but he’s facing perhaps the toughest fight of his political career as attorney and Democratic challenger Jason Crow leads in recent polls.

Voters are now deciding whether to give Coffman another two-year term or take a leftward shift with Crow. We’ll find out on November 6, but first, the candidates came to 9NEWS to argue their cases.

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9NEWS anchor Kyle Clark and 9NEWS political reporter Marshall Zelinger served as moderators.

You can watch the debate in full above.

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9NEWS will also be fact-checking the candidates' answers and will provide analysis after the debate on 9NEWS at 10 p.m., 9NEWS.com and our app.