Republicans have slammed President Joe Biden's handling of the 'border crisis' after incredible drone images revealed up to 1,000 migrants being held by the Border Patrol in Mission, Texas, after they crossed into the U.S. The footage shows scores of migrants stopped by Border Patrol agents standing in a long queue under Anzalduas Bridge on the southern border between Mexico and the U.S. 'An absolute catastrophe from Joe Biden, Kamala Harris, and House & Senate Democrats,' said Republican and House GOP Conference Chair Elise Stefanik in response to the video. The drone footage, which showed hundreds of migrants sat in large groups in the shade of the bridge, was posted by Fox news correspondent Bill Melugin. NEW: This is the largest group of migrants we¿ve ever seen being held by Border Patrol under Anzalduas Bridge in Mission, TX. Looks like it could be up to 1,000 people. We can only get a look at the area with our drone. There¿s a popular Rio Grande crossing area nearby. @FoxNews pic.twitter.com/AsAygsO966 — Bill Melugin (@BillFOXLA) August 1, 2021 The footage shows scores of migrants stopped by Border Patrol agents standing in a long queue under Anzalduas Bridge on the southern border between Mexico and the U.S. The drone footage, which showed hundreds of migrants sat in large groups in the shade of the bridge, was posted by Fox news correspondent Bill Melugin He tweeted: 'This is the largest group of migrants we’ve ever seen being held by Border Patrol under Anzalduas Bridge in Mission, TX. 'Looks like it could be up to 1,000 people. We can only get a look at the area with our drone. There’s a popular Rio Grande crossing area nearby.' Democratic Representative Henry Cuellar, from Texas, said that agents from the United States Department of Homeland Security as well as local communities living near the southern border are 'overwhelmed' by the influx of migrants at the southern border. Cueller, who has written to Biden asking him to appoint a new 'czar' to tackle the surge of unaccompanied migrants, shared images of scores of migrants sat underneath Anzalduas Bridge at the weekend. He tweeted: 'Our DHS agents, & border communities, are overwhelmed & must be prioritized. DHS will again encounter over 180,000 immigrants at the southern border during July—adding to the more than 1M immigrants that have arrived at the southern border in FY21. Something has to change!' DailyMail.com has contacted Border Patrol for a comment on the video footage. Cueller, who has written to Biden asking him to appoint a new 'czar' to tackle the surge of unaccompanied migrants, shared images of scores of migrants sat underneath Anzalduas Bridge at the weekend The footage comes as Republican Governor Greg Abbot on Saturday claimed the Biden administration has caused a 'constitutional crisis' after the U.S. Justice Department sued Texas to prevent troopers from stopping cars carrying migrants. Abbott issued the statement after U.S. Attorney General Merrick Garland announced that the Justice Department had filed a lawsuit over an executive order the governor signed on Wednesday. The Executive Order GA-37 tasked the Texas Department of Public Safety with stopping any vehicle suspected of carrying migrants and reroute them to their origin or impound them, claiming that they pose a risk of spreading the COVID-19. Abbott's order came even after he ended many the Lone Star State's protective measures amid the pandemic, even going so far as to prevent local governments from enforcing mask mandates and vaccine requirements. 'The Biden Administration has created a constitutional crisis between the federal government and the State of Texas,' Abbott said on Friday. 'This stems from the Biden Administration's refusal to enforce immigration laws and allow illegal immigrants with COVID-19 to enter our country.' U.S. officials reported this month that they had encountered 55,805 members of families with children in June, an increase of 25 per cent compared to the previous month. That figure still remains far below the high of 88,587 in May 2019. Gov. Greg Abbott claims the Biden administration has caused a 'constitutional crisis' Abbott said that Texas is being 'overrun and overwhelmed' by a record-high influx of migrants - and alleged that 'cartels and smugglers profit off the chaos.' 'Not only that, but this crisis also extends beyond the border as deadly drugs like fentanyl infiltrate our communities,' Abbott said. 'This already dangerous situation continues to deteriorate as the Biden Administration knowingly imports COVID-19 into Texas from across the border—willfully exposing Texans and Americans alike.' He added: 'President Biden has a duty and a responsibility to protect and uphold our nation's sovereignty, yet he has long-since abdicated his authority to do so.' All rights reserved for this news site (dailymail) and under his responsibility