My wife and I have entered the US twice since President Trump came took charge. We're Indians, I'm on H1b and wife's on F1. The second time was a breeze, the agent was in a great mood and we just chatted about how she loves my company's product while she did her stuff.
The first time was more difficult, because I said something (technically correct) about my documents that confused her (understandably) for a while, so she had to lookup some extra stuff. She also asked my wife a lot of questions, because she was under the (wrong) impression that her school was blacklisted. That was seriously incompetent IMO, but she apologized after her supervisor (or some other superior) explained things to her. She also marked that we needed to go through customs, which the first time I've had to do that in almost 10 entries. I chalked this as a negative experience because of the customs thing, we felt she did that just to inconvenience us in some way. I cannot link this in anyway to President Trump, however.
Both times, we were one of the first people to be off the plane's economy section, but the wait before we got to the counter was 1+ hour. SFO is ridiculous.
My worst experience came when entering during President Obama's tenure (but nothing to do with his policy) in 2016. The agent went through my entire 9-year old passport, asked me why I had visited country X in 20YY, why I lied to my visa officer back when I got a F1, etc (that I'd go back home after studies. I did not lie, I happened to get a job and the employer happened to want to apply for a H1. I did not even know back then that there was a real or fake "shortage" in tech workers).
Hopefully more anecdata helps. If you're on the fence about visiting the US as a tourist I hope you end up deciding to come!