Anonymous wrote:Don't be silly. If you have a U.S. passport, you'll be fine.
I wish I had your confidence. OP very likely will be fine. But the concern for a low likelihood issue at the border is valid under the new administration, even for US citizens (but admittedly much less likely).
.https://www.nbcboston.com/news/politics/treated-like-a-criminal-us-citizen-says-he-was-detained-returning-from-canada/3686188/
I was once pulled aside for a brief inspection at the US-Canada border. It was "open your trunk", a minute of questions, and move on. That sort of thing is the way it used to be if you had bad luck. Now you could go down a very stressful road if you truly get the wrong agent on the wrong day.