“The border surge is “challenging” because the immigration system that had been in place for decades “was dismantled in its entirety by the Trump administration.”
What PolitiFact found
Trump’s administration did make significant changes to the U.S. immigration system, but those changes are not wholly responsible for a surge in migration or the Biden administration's ability to deal with it.
Their words, from the summary they publish with the rating.
In short
Alejandro Mayorkas (Secretary of the Department of Homeland Secretary) made this claim around 21 March 2021. PolitiFact (United States) looked into it and published its finding on 24 March 2021, 3 days later. Its rating was “Half True”.
Alejandro Mayorkas has 3 checked claims in this archive. Fact-checking organisations rated 1 of them false or fake, 1 misleading or mixed and 1 true.
This check was done by PolitiFact, not by DoesItStand. We list it so you can find it. Their full evidence and reasoning are in their article.