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DENVER (KDVR) — Republican lawmakers in Colorado said recently they plan to challenge the Jan. 6 certification of Electoral College votes that will solidify President-elect Joe Biden’s victory in the 2020 general election.

Reps. Doug Lamborn and Lauren Boebert said in the past week they will attempt to dispute the results of the election.

On Monday, Congressman Lamborn, who represents Colorado’s 5th congressional district, released a statement, saying, “The serious irregularities and improprieties marring the 2020 general election threaten America’s confidence in our electoral system. My constituents deserve to know that the 2020 election was free of fraud, which is why on January 6th, I will object to certifying the Electoral College votes of Arizona, Georgia, Pennsylvania, Wisconsin, Nevada, and Michigan.”

While Congresswoman Boebert has not released an official statement saying she will challenge the vote certification, she told FOX31’s Matt Mauro in an interview last week that she will object to the electoral results.

“I will be objecting to the electoral results on January sixth,” Boebert said. “We have 74-plus million people who do not believe this was a secure, free and fair election. Some of them sent me to be here to be their voice. So that’s exactly what I’m going to do.”

While another Colorado Republican, Rep. Ken Buck, supports President Trump’s right to use legal means to overturn the election results, he wrote a letter urging Congress not to challenge states’ Electoral College votes.