stunning new numbers about just how many migrants border patrol has released back into the united states. now they are in a backlogged system, sometimes in the u.s. waiting to find out their fate for years. let s go outfront. good evening. i m erin burnett. out front tonight, destruction and failure as president zelenskyy warns that putin is potentially preparing to go nuclear. it is because of video like this russian tanks and other fighting vehicles you can see all destroyed in ukraine s lightning-fast advance in the east. ukrainian president zelenskyy saying today that ukrainian forces have liberated nearly 1,000 square miles in this offensive. and you can see the destruction that happened in that wake. that destruction tonight is actually forcing russian cities like st. petersburg to cancel a celebration. we are learning that those soldiers have literally been living in pig stys in occupied parts of ukraine. this was a village pig shed that became home to those russia
the region. there s another 10,000 or so who may well escape kurdish control in the coming weeks. so isis is not down and out by this operation. i m hoping we can go to matt bradley. spent a lot of his career on isis. a minute until we go to the president. talk about russia s role in all of this. the president s remarks just about an hour away. matt? reporter: yeah. russia s role in all of this, not clear if russia can play a role in this competing episode where everybody will want to claim as fast and convincingly as they can, some kind of credit fort death of abu bakr al baghdadi. we saw the turkish government, iraqi government, forces on the ground in syria. all of these people rushing to