From the League of Postmasters:
Postal Legislation: S. 1789 Update
There is a Good possibility that the Senate will have a second vote on cloture for the Motion to proceed with S. 1789 sometime this week. If the motion for cloture on the motion to proceed passes, S. 1789 will be allowed to be brought to the floor for consideration. A full Senate debate is expected which will take several days. A no vote will prevent S. 1789 from going to the floor now. Please check our website frequently for future updates and a possible need for grassroots action.