Holy moley.
Is this for real, or a Babylon Bee satire?
More (and perhaps better) information here: https://nypost.com/2019/07/11/pelosi-defends-laws-allowing-migrants-to-seek-asylum-from-home-country/
The civil war in the US is being fought on many fronts. This one is the “globalists vs nationalist” one.
The video at the link is 4 minutes of Pelosi manipulating, including reading a statement to those ICE may approach that a deportation letter is not a search warrant so people do not have to open the door or let ICE in if they knock, and then the denial of US sovereinty is located here (video link below is cued up to relevant quote but whole video is instructive).
https://youtu.be/tnwtXufqr3A?t=155