Senate Republicans Threaten to Block Border Security Bill They Negotiated. The backlash comes as Donald Trump calls on the Republican Party to sink the bill, arguing it could take political pressure off Democrats ahead of his expected rematch with Joe Biden.

The vote scheduled for Wednesday is a procedural vote to move toward debate on the legislation. That vote, called a cloture motion, needs 60 votes to pass. If it fails, the bill would be frozen indefinitely until 60 senators agreed to restart its debate in the plenary session.