DOC, "THE KIDNAPPING OF NOAH" WITH RAF SANCHEZ STREAMING NOW. >>> LET'S GET TO THE CRISIS AT THE SOUTHERN BORDER AND THE STAGGERING NEW RECORD, MORE MIGRANTS CROSSED INTO THE U.S. ON MONDAY THAN ANY OTHER DAY IN HISTORY AND NOW TEXAS IS BEING SUED AFTER GIVING STATE LAW ENFORCEMENT SWEEPING NEW POWERS TO ARREST THEM. MORGAN CHESKY IS THERE. >> Reporter: TONIGHT, STUNNING IMAGES FROM EAGLE PASS, TEXAS, WHERE THOUSANDS OF MIGRANT MEN, WOMEN, AND SO MANY CHILDREN NOW FILL ENTIRE FIELDS. THE GROUPS LINING THE RIO GRANDE CLINGING TO BLANKETS HUDDLING TO STAY WARM ALL WAITING FOR HOURS TO BE PROCESSED. AND MOST LIKELY TO BE RELEASED INTO THE UNITED STATES. OF ALL OUR TRIPS TO EAGLE PASS, THIS IS THE LARGEST GROUP WE HAVE EVER ENCOUNTERED. SOURCES TELL US THE MAJORITY OF THESE FAMILIES ARE VENEZUELAN AND WE JUST LEARNED FROM AUTHORITIES NEARLY 3,000 WERE APPREHENDED JUST YESTERDAY. ON MONDAY ALONE, A STAGGERING NEW RECORD, DHS OFFICIALS TELLING NBC NEWS MORE THAN 12,000 MIGRANTS CROSSED THE U.S./MEXICO BORDER, THE MOST RECORDED IN A SINGLE DAY EVER. THE SURGE SPARKING A NEW BATTLE BETWEEN THE LONE STAR STATE AND THE WHITE HOUSE. REPUBLICANS HERE BLAMING PRESIDENT BIDEN'S BORDER POLICIES FOR A RECORD NUMBER OF ILLEGAL CROSSINGS. >> BIDEN'S DELIBERATE INACTION HAS LEFT TEXAS TO FEND FOR ITSELF. >> Reporter: NOW GOVERNOR GREG ABBOTT SIGNING A NEW LAW MAKING ILLEGAL IMMIGRATION A STATE CRIME EMPOWERING POLICE AND SHERIFF'S DEPUTIES TO ARREST MIGRANTS. TEXAS HAS ALREADY PUT FLOATING BARRIERS IN THE RIO GRANDE AND BARBED WIRE ALONG THE BORDER, BUT BOTH FACE ONGOING CHALLENGES. THE WHITE HOUSE CALLING THE NEW LAW EXTREME. THE ACLU OF TEXAS SAYING THEY'LL SUE. >> THAT IS GOING TO DRIVE OUR IMMIGRANT COMMUNITIES INTO THE SHADOWS. IT'S GOING TO INCREASE SUSPICION OF RELYING ON LAW ENFORCEMENT. >> HOW MUCH LONGER CAN YOU KEEP UP? >> WE CAN'T. WE CAN'T. NOW IT'S 3 OR 4,000 RIGHT NOW. SO THEY'RE COMING IN. >> Reporter: THIS SHERIFF TELLS US THEY'RE STRUGGLING TO COPE WITH THE NUMBER OF MIGRANTS BUT THE NEW LAWS ONLY RAISE NEW QUESTIONS. NAMELY, WHERE NEWLY ARRESTED MIGRANTS WOULD POTENTIALLY BE HELD. HIS JAIL HOLDS 250 AND TODAY SITS JUST BELOW 200. >> I DON'T HAVE THE RESOURCES, I DON'T HAVE THE SPACE. WHERE ARE WE GOING TO PUT THEM? >> MORGAN, WE SEE THOSE MASSIVE CROWDS OF MIGRANTS BEHIND YOU AND OFFICIALS SAY THEY EXPECT MORE SOON. >> Reporter: LESTER, THAT'S RIGHT. THE SHERIFF TELLS ME HE'S BEEN WARNED BY MEXICAN AUTHORITIES WHO SAY DESPITE THE RAILROAD CLOSING DOWN A LARGE GROUP OF