House Impeachment managers and President Trump's legal team debated on the trial rules on Capitol Hill as the impeachment process started in the Senate on Tuesday.
Two major changes to the rules were made at the last minute, and the new resolution will give each side three days to make their 24 hours of opening arguments, instead of the two days as earlier proposed.
They've also decided to admit the House's evidence automatically unless the President's team puts forward a motion to reject the evidence.
However, there were some disagreements about calling additional witnesses, including former National Security Adviser John Bolton.
"The trial should be fair to the House, which has been wrongly deprived of evidence by a president who wishes to conceal it. It should be fair to the president who will not benefit from an acquittal or dismissal if the trial is not viewed as fair."
"A partisan impeachment is like stealing an election. And that's exactly what we have. We have, talk about the framers worst nightmare, it's a partisan impeachment that they've delivered to your doorstep in an election year."
The White House has been constantly denying the allegations made against the president.
Earlier, the executive branch even filed a legal brief, calling for a speedy acquittal of President Trump.
Trump was impeached by the House in December for allegedly withholding military aid to Ukraine unless its then-newly elected President investigated Trump's political rivals ahead of the 2020 U.S. Presidential election.
Yoon Jung-min, Arirang News.