The current majority party shouldn't criticize each other? That attitude, sir, is one of the major problems with the modern republican party...lockstep extremism and a "we'll tell you how to vote and what to say" approach to governing. That lockstep extremism has republicans in the Senate refusing to even consider a 9th supreme court nominee. The party lockstep, do as your party leaders tell you attitude is how we end up with crappy government. This attitude is sometimes present on the democratic side of the aisle but it's a set in stone rule on the republican side and a much, much bigger problem with conservatives.