In a significant change that was quietly made to Sen. Mitch McConnell's resolution, there are now three days of opening arguments over 24 hours. The initial language had just two days. McConnell's office confirms they made the change.
These changes just occurred prior to the start of the trial. There are also changes to the evidence section – evidence will be admitted unless there is a vote in opposition to it.
There were Republican senators who had issues with McConnell’s resolution, according to sources familiar. These last minute changes were meant to address those issues.