A Greenland Round Robin

When Governor Huey Long of Louisiana was impeached in 1929, he hit on a clever strategy to avoid conviction and removal. Before the trial began, he persuaded one-third +1 of the state senators to sign a pledge that they would not vote to convict. This pledge became known as the "Round Robin." The trial never happened because a two-thirds vote in the state Senate was required for a conviction.

It seems to me that 34 or more United States Senators could do something similar with respect to a proposed treaty concerning Greenland. A two-thirds vote, of course, is required to ratify a treaty. The pledge would be stronger, of course, if at least 34 of those senators were not up for reelection this year.