Sen. Tim Kaine Timothy (Tim) Michael KaineBarrett seen as a front-runner for Trump Supreme Court pick Biden promises Democratic senators help in battleground states Second GOP senator to quarantine after exposure to coronavirus MORE (D-Va.) said on Saturday that he wanted his GOP colleagues in the Senate to treat President Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE's trial with "at least" the seriousness that they would treat a traffic court case.

During an interview with MSNBC host Ari Melber, Kaine remarked on his desire to have his Republican counterparts in the Senate request evidence and call new witnesses for testimony.

The senator talked about his experience as a lawyer, stating that no matter the case and its severity, there have always been witnesses and related documents involved in a trial.

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"I tried cases for 17 years as a civil rights lawyer and I had cases in every court from the traffic division of Richmond General District Court to the United States Supreme Court, and there is no case that I ever tried, to a judge or jury, that didn't have witnesses and documents,” Kaine said.

“All I want from my Republican colleagues is that they treat the matter of an impeachment trial of the president of the United States with at least the same degree of seriousness as they would get if they were in the traffic division of Richmond,” he said.

The question still remains whether the Senate will call new witnesses to the impeachment trial to testify. In the Republican-controlled Senate, it will be unlikely that lawmakers vote in favor of calling new witnesses, as Democratic senators would need four GOP votes.

Currently, Sens. Susan Collins Susan Margaret CollinsJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally Momentum growing among Republicans for Supreme Court vote before Election Day MORE (Maine), Lisa Murkowski Lisa Ann MurkowskiMomentum growing among Republicans for Supreme Court vote before Election Day Collins: President elected Nov. 3 should fill Supreme Court vacancy Barrett seen as a front-runner for Trump Supreme Court pick MORE (Alaska) and Mitt Romney Willard (Mitt) Mitt RomneyMomentum growing among Republicans for Supreme Court vote before Election Day Toobin: McConnell engaging in 'greatest act of hypocrisy in American political history' with Ginsburg replacement vote The Memo: Court battle explodes across tense election landscape MORE (Utah) could be among those moderate Republicans to swing.

Recently, Romney said that it was likely he would vote to call on witnesses, though he said he would like to hear all of the opening arguments before deciding.

The Senate impeachment trial of the president began Tuesday and went on until Saturday.

The trial will pick up again on Monday, and though it's unclear when exactly the trial will conclude, Trump’s allies have shown a preference for a quick trial without witnesses which could end as soon as next week.