This was a vote on a specific change, known as an amendment, to the bill H.R. 1. Specifically, it was a 'second-degree amendment,' which is a proposal to modify a different change that had already been suggested for the bill. Because the proposal did not receive a majority of votes, the suggested change was not adopted. In the Senate, amendments are the primary way members alter the text of a bill before it is finalized. A second-degree amendment like this one allows senators to fine-tune the details of an earlier proposal. To pass, the amendment required a simple majority—more 'yes' votes than 'no' votes. The amendment failed because the vote resulted in a tie, which does not meet the threshold for approval. The vote was notable for its lack of clear party division, as both the Democratic and Republican caucuses were almost evenly split on the measure. The Senate will now proceed with the underlying version of the bill without this specific change.