U.S. Senate Minority Leader Chuck Schumer on Thursday called on Attorney General Jeff Sessions to resign after it was revealed he met with the Russian ambassador during Donald Trump’s presidential campaign.

At the same time, Schumer called for an investigation of Sessions himself and his involvement in the Department of Justice’s review of Russian interference in last year’s U.S. presidential election.

“I am worried about the future of our country with foreign influence in our elections – it goes to the very wellspring of our democracy,” Schumer said in a statement.

Democrats on the national level are pushing for Sessions to step aside as attorney general after the DOJ acknowledged he met with Russian’s top diplomat to the U.S. last year. Sessions has acknowledged he met the ambassador twice: Once in a meeting in his office during his capacity as a member of the Senate Foreign Relations committee and during the Republican National Convention at an even hosted by the Heritage Foundation.

Some Republican lawmakers are also calling on Sessions to recuse himself from the investigation into Russian’s alleged involvement in seeking to sway the outcome of the election.