The Biden administration on Tuesday urged an appeals court to allow sweeping new asylum restrictions to stay in place, warning that halting them would be “highly disruptive” at the border.

The government is urging a panel of judges in Pasadena, California — two appointed by President Bill Clinton and one by President Donald Trump — to overturn a July ruling that sought to block the new asylum restrictions. The new restrictions made it far more difficult to qualify for asylum if a migrant didn’t first apply online or traveled through another country, such as Mexico, and didn’t seek protection there. They have remained in place during the appeal.

Although the judges didn’t rule immediately and gave no indication how they were leaning, the arguments occurred against a backdrop of Senate Republicans seeking to legislate far-reaching changes to asylum eligibility as part of President Joe Biden’s request for military aid to Ukraine and Israel.

Courts blocked similar measures under Trump but the Biden administration says its approach differs because it is coupled with new legal pathways to enter the country and creates exceptions. However, advocates represented by the American Civil Liberties Union, Center for Gender & Refugee Studies and National Immigrant Justice Center argue that they are recycled Trump-era policies that violate U.S. law allowing people to seek asylum no matter how and where they arrive.

A mobile app introduced in January allows asylum-seekers to make 1,450 appointments per day at official border crossings with Mexico, while the Biden administration has allowed up to 30,000 a month from Cuba, Haiti, Nicaragua and Venezuela to pursue asylum if they apply online with a financial sponsor and arrive at an airport.

Those new pathways represent “a very significant difference” from Trump policies, said Brian Boynton, a Justice Department attorney. Boynton also noted that 12% of the 57,700 asylum-seekers who were subject to the new rule through September avoided it by proving “exceptionally compelling circumstances,” including “acute medical emergency,” “imminent and extreme threat to life or safety” or being a victim of human trafficking.