I presume it would be alright to say "Brian Schatz is not my Senator".  Regardless if you like President Trump or not (in your case the latter), President Trump is our president until otherwise.  By the way, I'm disappointed at Senator Schatz's tenure as our one of our Senators.  Per the aforementioned, regardless of my opinion of Senator Schatz he is still a one of "Hawaii's Senators"...like it or not or until otherwise.  Please focus on healthcare repeal / reform, tax reform, tax bracket(s) change and get it done.