Montana and Arizona Are Challenging the Biden Administrations Open Borders Insanity Montana and Arizona Are Challenging the Biden Administrations Open Borders Insanity Mar 11, 2021 States are taking action against the federal governments inability to put forward an immigration policy that upholds American interests/. According to Samuel Allegri of the to prevent new immigration regulations from the Biden administration that they believe will negatively impact their respective states. Under the new rules implemented by the Biden administration, ICEs ability to detain some illegal aliens has been greatly restricted. Only illegal aliens who pose a threat to national security, crossed the American after November 1, 2021, or committed aggravated felonies would be detained and subject to deportations.