Senate Democrats are doubling down on their push to create a commission to probe allegations that Russia meddled in the White House race.

Democratic Sens. Ben Cardin (Md.), Dianne Feinstein (Calif.), Patrick Leahy (Vt.), Tom Carper (Del.) and Amy Klobuchar (Minn.) introduced legislation on Wednesday to create the independent panel.

"The American people deserve a nonpartisan, transparent, public investigation into this insidious attack on our democratic institutions,” Cardin said in a statement.

The panel, according to the Democrats, would be able to probe Russian cyber attacks on the political system and investigate any attempt by Russia to meddle in U.S. elections.

It would have roughly 18 months to hand over its findings to Congress, including identifying those responsible for the email hacks and recommending a response.

Leahy painted the legislation as the next step following the Obama administration’s sanctions against Russia late last month.

"We need an accounting — a serious, independent and bipartisan investigation of attempted Russian interference in the American presidential election.  This is larger than any one candidate or any one election," he said.

Though members of the commission would be appointed by a both parties, it would likely face an uphill battle to get congressional approval.

Senate Majority Leader Mitch McConnell has signaled repeatedly that he does not believe an independent commission or a select congressional committee is needed.

He told reporters late last year that the Senate Intelligence Committee could handle the investigation.

The Senate Foreign Relations Committee will also hold a closed-door briefing on the Obama administration's response to Russian hacking next week.