Are Trump's tweets a U.S. Constitutional question? - Reuters TV

No. Tweets are no different than speaking from the back of a railroad caboose when railroads were new and allowed the presidents to speak to more people in a shorter time.

Interesting question and thought.

I see nothing wrong with him blocking folks, but if you can use twitter to implement policy, everyone should be allowed to read what you say and not be "censored" in doing so. His tweet that showed his social media use isn't Presidential, but is "Modern Day Presidential" has me scratching my head tho.

LOVE the comments tho...
https://twitter.com/realdonaldtrump/status/ [login to see] 17355264?lang=en