(Washington, DC) — Senators are hearing a vigorous debate in President Trump’s impeachment trial. White House counsel Pat Cippolone argued that Democrats have “no case.” He said Trump “has done absolutely nothing wrong.” California Democratic Congressman Adam Schiff insisted that the evidence against Trump is clear and overwhelming. Schiff said House impeachment managers should be allowed to summon witnesses and subpoena documents that have been blocked by the White House. Schiff played a video of Trump saying he’d love to have some top aides and Secretary of State Mike Pompeo testify.

Schiff chairs the House Intelligence Committee. Trump lawyer Jay Sekulow insisted that Trump was denied “due process” in the House impeachment process. Later today or tonight, senators will vote on trial guidelines put forth by Senate Majority Leader Mitch McConnell. Cippolone said the guidelines lay out a fair process for the impeachment trial. Schiff called McConnell’s road-map a “process for a rigged trial.” While acting as jurors in the impeachment trial, senators must remain in their seats and are not allowed to speak.

Senators are also prohibited from carrying smartphones or other communications devices. Four senators who are Democratic presidential candidates must be in DC for the trial. They are Vermont’s Bernie Sanders, Minnesota’s Amy Klobuchar, Colorado’s Michael Bennet and Elizabeth Warren from Massachusetts. The Iowa caucuses take place early next month. The House impeached the President last month for abuse of power and obstruction of Congress in the investigation of the Ukraine scandal.