It's nice of you to exclude President Trump of responsibility for the laws he signs. I do the same for the record setting DOW numbers we used to get.
How long would it take you to go through a 1000 page Bill and understand the implications of "In subsection 3 paragraph 2 the words following "and" shall be struck and replaced with language which brings it into compliance with subsection 2, paragraph 3A."
Even if you know what is in it, you don't necessarily know all the implicatons of that by just reading the Bill.
Besides, if you don't sign it, YOU are holding up the desperately needed aid for (whatever plays best against you in the MSM), 24/7, above the fold, until you sign! It's Media based blackmail and it
is effective, because the media won't dig unless there are landmines in the legislation put there just for you, and they will find them (maybe even with help from the people who really wrote them in)..