https://www.washingtonpost.com/
"Johnston imagined a scenario in which McConnell offered a measure to move forward, either with a full trial or something shorter, and a senator from either party objected. That would be McConnell’s cue to shut the entire thing down. “Under the rules, there would be unlimited debate until the leader files a cloture motion,” he explained. “That triggers an additional 30 hours culminating in a vote.
“McConnell could first block the filibuster on any motion to proceed and then move to dismiss any article of impeachment with a simple majority.”
Which means there would be no trial.
This process — the refusal by the Senate to approve a “Motion to Proceed” — is how the Senate should flush articles of impeachment from the record as it stands today. Invite the House to begin again if it wants to, but using due process if it does, and backed by a bipartisan majority."