Sen. Amy Klobuchar Amy Klobuchar3 reasons why Biden is misreading the politics of court packing Social media platforms put muscle into National Voter Registration Day Battle lines drawn on precedent in Supreme Court fight MORE (D-Minn.) said Sunday that the Democratic White House hopefuls must debate again before the Iowa caucuses despite a looming Senate impeachment trial that would involve her and a handful of her 2020 primary opponents.

"I have made it very clear that there should be no excuses," Klobuchar said on CBS's "Face the Nation."

"I'm ready to debate at midnight if that's what we have to do. We have to have a debate before the Iowa caucuses."

Klobuchar said it's her "first belief" that Democrats "have to have the debate" before Iowans choose a candidate. She said the debate may have to take place between trial proceedings to ensure the senators in the race can participate.

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The next debate is set for Jan. 14, less than a month before the February 3 caucuses.

But the Senate impeachment trial will likely fill the first month of the year. The House voted in favor of two articles of impeachment last week, but Speaker Nancy Pelosi Nancy PelosiPelosi: Trump Supreme Court pick 'threatens' Affordable Care Act Sunday shows preview: Lawmakers prepare for SCOTUS confirmation hearings before election Will Democrats attempt to pack the Supreme Court again? MORE (D-Calif.) has yet to transmit the articles to the upper chamber, as Senate leaders decide on parameters for the trial.

The Democratic National Committee raised the qualification requirements for the January debate. Candidates need at least 5 percent support in at least four approved polls that can be either national or based in Iowa, New Hampshire, South Carolina or Nevada.

Candidates can also qualify by reaching at least 7 percent support in two single-state polls in the first four primary or caucus states.

They must also gather 225,000 unique donors and at least 1,000 unique donors per state in at least 20 U.S. states, territories or Washington, D.C.

Klobuchar's comments come after a boost in her campaign after what was largely seen as a strong performance in Thursday's debate.

Klobuchar raised more than $1 million in donations in 24 hours after the debate.

During the debate, Klobuchar took on top-tier candidates Sen. Elizabeth Warren Elizabeth WarrenOvernight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds On The Money: Half of states deplete funds for Trump's 0 unemployment expansion | EU appealing ruling in Apple tax case | House Democrats include more aid for airlines in coronavirus package Warren, Khanna request IG investigation into Pentagon's use of coronavirus funds MORE (D-Mass.) and South Bend., Ind., Mayor Pete Buttigieg Pete ButtigiegBillionaire who donated to Trump in 2016 donates to Biden The Hill's Morning Report - Sponsored by Facebook - GOP closes ranks to fill SCOTUS vacancy by November Buttigieg stands in as Pence for Harris's debate practice MORE as the Minnesota senator tries to break through in the crowded field.

--This report was updated at 12:03 p.m.