EXCLUSIVE — House Republicans are upping the pressure for the Biden administration to disclose the extent to which it has allowed hundreds of thousands of migrants to bypass the southern border and fly directly into the United States from abroad.

Missouri lawmakers in the House sent Homeland Security Secretary Alejandro Mayorkas a letter Thursday requesting details on the approximately 400,000 non-U.S. citizens the Biden administration has used the parole process on to wave foreigners into the country.