Right. But if Schuler's story is true (and I don't know if it is) and he can prove it, that puts more focus on the issue. So trying to keep the issue out of the news by urging House members not to sign might not accomplish what he wants.
McCain does not seem shy about urging Republicans not to be tough on immigration:
I am by no means convinced you are wrong. What I will agree to is that at this point McCain could shoot someone on a corner in New York city at high noon, and he would still get many Republican’s votes due to fear of Hillary and Barak doing to us what he most certainly will.