This is infrastructure week, according to the White House, which rolled out a series of ideas on Monday. But the problem is, it’s not clear exactly when the Senate will have health care week. Or the House or Senate get tax reform week.

A health care bill was supposed to get through the House and the Senate by mid-March. Instead, the House narrowly passed its bill in May, and the Senate is hoping to get a vote in before August. (Or maybe as early as July.)

That’s just one of the issues that will create a calendar crunch. Here are five legislative jams looming ahead for the GOP: