The Florida senators said they got severe arm-twisting from the Republican leadership.
Now typically, when forced to do something like that, legislators, even congressmen, will insert a “poison pill” into the legislation, to insure that it is overturned by the courts. Thus they can claim they voted for it, but prevent the bad law from going into effect. “Those darned judges.”
I heard about the arm twisting as well. Interesting theory about the "poison pill". NRA has already taken it court. We'll see how it plays out. Hope you're right but it's a politically dangerous game they're playing if true.