1) Why would bitcoin price drop a little since the crypto summit last night. Shouldn't it have gone up?
The drop in bitcoin market price is not even as a result of the Congress meeting, because we should not expect anything from the meeting taking effect immediately like that, the discussions has just been made and with time they will be acting more on them.
2) Where do you see it heading in price from here?
We can't say for now not until we see some of them taking steps already.
3) Has Trump removed taxes yet from crypto when selling and/or tranferring from one crypto to another?
The google get the best answer on that if you can search online.