Funny thing- this wasn’t happening under Trump. So apparently she failed at finding those “underlying causes” huh?! Those causes were still there though under Trump. Only one difference. I’ll let you figure out what that is…
I gather you didn't read the article. It doesn't address Trump, but suffice to say he kicked the can down the road.
Immigration from the Golden triangle was reduced, though I dunno how much actually difference Harris made.
There was a surge from Cuba, Haiti, Venezuela and Nicaragua.