Twurl 'q=from' returning more than the one user's Tweets

[TCSF]

I’m new to both twurl and the Premium API, so thanks in advance for any patience as I figure this is a beginner’s question.

I’m running the following command, and I would expect it to only return Tweets made by (eg: from) one specific user (in this case, ‘realDonaldTrump’). However it appears to be returning messages he didn’t write - perhaps Tweets which mention the queried user name. Is this working as intended?

Thanks!

twurl '/1.1/search/tweets.json?q=from%3ArealDonaldTrump' | jq .

https://twitter.com/search?q=from%3ArealDonaldTrump

`