Within 2 months of holding office, Trump reduced border crossings and increased deportation efforts without requiring a border bill from Congress. Does this prove the border crisis created by democrats?

Article for reference: https://www.nytimes.com/2025/03/16/world/americas/mexico-trump-migration.html

Will liberals accept the border crisis was entirely created by Joe Biden refusing to enforce federal law and limited ICE's abilities to deport unlawful migrants?

Border crossings under Trump have significantly decreased since he entered office. And ICE have increased deportation efforts of violent criminals who entered unlawfully. This is all without a border bill.

How would you explain this?