Some Americans Been Caught in Trump’s Immigration Dragnet.

https://www.propublica.org/article/more-americans-will-be-caught-up-trump-immigration-raids

Some Americans Have Already Been Caught in Trump’s Immigration Dragnet. More Will Be.

Any US immigration officer has authority to question, without warrant, any alien or person believed to be an alien concerning his or her right to be, or to remain, in the United States