With the state’s top races still locked in a dead heat, voter turnout efforts could be the X factor in this election.
The incumbent Democrat has raised nearly $5.4 million for his campaign, while his Republican challenger has raised about $1.7 million.
Most of the ads scheduled for Sunday's game will target the U.S. Senate race in Colorado.
Colorado voters this fall are deciding on a lot of local issues that may not be getting much attention beyond their own city limits.
Colorado Republican Cory Gardner is seeking to oust Democrat Mark Udall in one of a handful of key U.S. Senate races.
See where congressional candidates Democrat Ed Perlmutter and Republican Don Ytterberg stand on a range of issues.
See where congressional candidates Democrat Andrew Romanoff, the Green Party's Gary Swing, Libertarian Norm Olsen, , and Republican Mike Coffman stand on a range of issues.