NPR Staff

Updated at 9:09 p.m. ET

On the eve of arguments in President Trump's historic impeachment trial, Senate Majority Leader Mitch McConnell has revealed his long-awaited resolution setting the initial parameters for how the process will play out.

Democrats are already slamming the four-page resolution, which they say will place time limits on arguments, and departs heavily from President Clinton's impeachment trial of 1999. The McConnell resolution does have some similarities to the Clinton-era resolution, however.

The White House released its formal response to the summons sent by the Senate last week, a procedural part of the impeachment process ahead of the trial that begins on Tuesday.

"The articles of impeachment submitted by House Democrats are a dangerous attack on the right of the American people to freely choose their president," the White House's response says. "This is a brazen and unlawful attempt to overturn the results of the 2016 election and interfere with the 2020 election."

House impeachment managers released their formal response to the summons sent by the Senate last week, a procedural part of the impeachment process ahead of the trial that begins on Tuesday.

"President Trump's conduct is the Framers' worst nightmare," they said in the brief released Saturday.

News organizations and journalists' advocates are challenging restrictive new ground rules for reporters assigned to cover the Senate impeachment trial.

Correspondents who submit to an official credentialing process are granted broad access throughout the Capitol complex and usually encounter few restrictions in talking with members of Congress or others.

But now Senate Sergeant-at-Arms Michael Stenger has imposed new requirements for the impeachment trial, negotiated in part with Republican leadership:

An important federal watchdog released a report on Thursday concluding President Trump's actions in the Ukraine affair broken a budget law.

House Democrats impeached Trump in part because they said he abused his power in freezing military aid that Congress had allocated to help Ukraine in its war against Russia. Trump asked Ukraine's president to conduct an investigation into former Vice President Joe Biden, a potential rival for the 2020 election.

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