President-elect Donald Trump could soon make good on his promise to do away with the Biden administration’s CBP One app, a government phone app that allows immigrants to apply for admission to the country through programs that circumvent Congress.

“As President I will immediately end the migrant invasion of America. We will stop all migrant flights, end all illegal entries, terminate the Kamala phone app for smuggling illegals (CBP One App), revoke deportation immunity, suspend refugee resettlement, and return Kamala’s illegal migrants to their home countries (also known as remigration),” Trump wrote in a post to X on Sept. 15.