In a letter leaked to the press Sunday night, Senate Minority Leader Chuck Schumer (D-NY) spelled out the Democrats’ demands for the all-but-inevitable impeachment trial in the Senate, including a list of new witnesses Democrats insist on interrogating. In response, Senate Majority Leader Mitch McConnell delivered a statement on the Senate floor Tuesday rejecting the Democrats’ demands and reminding them about how the impeachment process works.

“We don’t create impeachments, Mr. President. We judge them,” said McConnell, in comments reported by Axios. “The House chose this road. It is their duty to investigate. It’s their duty to meet the very high bar for undoing a national election.”

McConnell then used Democrat House Speaker Nancy Pelosi’s own words against her. “As Speaker Pelosi herself once said, it is the House’s obligation to, quote, ‘build an ironclad case to act,'” said McConnell.

“If they fail, they fail,” he added. “It is not the Senate’s job to leap into the breach and search desperately for ways to get to guilty. That would hardly be impartial justice.”

In the letter, that was leaked to the press, Schumer demands that Democrats have the ability to subpoena witnesses, including key White House witness, among them acting chief of staff Mick Mulvaney and former national security advisor John Bolton. The Democrats also insist on the ability to present evidence. “In the trial of President Clinton, the House Managers were permitted to call witnesses, and it is clear that the Senate should hear testimony of witnesses in this trial as well,” Schumer wrote. “I propose, pursuant to our rules, that the Chief Justice on behalf of the Senate issue subpoenas for testimony by the following witnesses with direct knowledge of Administration decisions regarding the delay in security assistance funds to the government of Ukraine and the requests for certain investigations to be announced by the government of Ukraine: Robert Blair, Senior Advisor to the Acting White House Chief of Staff; Mick Mulvaney, Acting White House Chief of Staff; John Bolton, former National Security Advisor; and Michael Duffey, Associate Director for National Security, Office of Management and Budget.” Schumer, apparently assuming the role of majority leader, told McConnell that the Democrats would also be “open” to hearing testimony from other witnesses, if need be. “We would of course be open to hearing the testimony of additional witnesses having direct knowledge of the administration’s decisions regarding the delay in security assistance funds to the government of Ukraine and the requests for certain investigations to be announced by the government of Ukraine, if the president’s counsel or House Managers identify such witnesses,” said Schumer.