Releasing tax returns is common practice for presidential candidates, but it's not a requirement to run or to serve.  Voters knew Trump hadn't released his taxes but voted him in anyway. (I did not vote for him) Further, the investigations you mentioned have turned up no evidence to suggest an inappropriate relationship with Russia. Congress shouldn't start making tax returns public just because people don't like who won an election.  If real evidence does show up, I'll gladly change my tune.  

Perhaps it's time to consult your indivisible guide and see if there is something else you can complain about.  This one is getting a little tired.  

And, BobCI, US Reps can't vote on state legislation.  Maybe understand the difference between state and federal government before complaining about something that isn't possible. Or you could even just be happy when your rep votes the way you want him to.