More than a million migrants who were allowed to enter the United States during the Biden administration may have their temporary stays revoked and be rapidly deported, according to an Immigration and Customs Enforcement document that became public Friday.

Many of the migrants under threat spent months waiting in Mexico, at migrant shelters or in rented rooms, in cities that are rife with cartel violence and kidnappings, in order to enter the US with permission.

The Trump administration is empowering federal immigration officers to consider whether to strip temporary legal status from migrants who entered through former President Joe Biden's signature "parole" programs in an effort to ramp up deportations to record levels,