KUSA – Republicans are increasingly calling for Donald Trump to drop his presidential bid after a 2005 video surfaced of the Republican nominee making lewd comments towards women.

U.S. Senator Cory Gardner joined other members of his party Saturday, asking for Trump to “step aside” in a Tweet.

Trump announced Saturday he has no plans to leave the race, even though a rising number of Republicans urged him to do just that. Trump vowed in capital letters on Twitter to "never drop of out the race." He also pledged to "never let my supporters down."

Republican U.S. Senate nominee Darryl Glenn also denounced Trump in a statement released Saturday afternoon.

"As a father, as a Christian, and as a Republican, I believe that we simply cannot tolerate a nominee who speaks this way about women.

This is the most important election of our lifetime. Hillary Clinton is a threat to the rule of law, and to our safety and security. But Donald Trump is simply disqualified from being Commander in Chief--America cannot have a man who speaks this way about women be the face of our country to the Free World.

I am therefore calling on Donald Trump to do the honorable, selfless thing--voluntarily step aside and let Mike Pence be our party's nominee so that we can defeat Hillary Clinton, keep control of the Senate, and put our nation back on a path of safety and security.

If Trump is truly committed to making America great again, then this is the only way forward."

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On Friday, Republican Mike Coffman called for Trump to step aside. His campaign manager released the following statement:

“For the good of the country, and to give the Republicans a chance of defeating Hillary Clinton, Mr. Trump should step aside. His defeat at this point seems almost certain and four years of Hillary Clinton is not what is best for this country. Mr. Trump should put the country first and do the right thing.”

Donald Trump apologized for the vulgar and profane comments he made about women more than a decade ago, saying they "don't reflect" the man he is today.

Trump's campaign released the one-and-a-half-minute video on the GOP nominee's social media accounts early Saturday morning.

The Associated Press contributed to this report.