House passes bill to reform Postal Service operations

[BumRushDaShow]

20. If there are 60 votes to invoke cloture

the only thing he can really do to try to "block" anything is object to a unanimous consent request to pass it.

If that unanimous consent request is even attempted, they would just go through the regular debate process by invoking cloture... And if there are any attempts at amendments that might change the bill from what the House sends them, those can easily be voted down. Or they could consult with the House to see if there is time for them to vote on the Senate's slightly changed version if something does happen like that, but since they have imposed a "President's Day holiday" deadline to get it done, I expect they want to get this off their plate of things to do and they are going to try to keep the bills the same (probably by just using the House version as an "amendment as a substitute" to the Senate version, voting on that, and be done with it).