Biden and Congress are mulling big changes on immigration. What are they and what could they mean?
FILE - Asylum-seekers walk to a U.S. Border Patrol van after crossing the nearby border with Mexico, Tuesday Sept. 26, 2023, near Jacumba Hot Springs, Calif. Migrants continue to arrive to desert campsites along California's border with Mexico, as they await processing. Congress is discussing changes to the immigration system in exchange for providing money to Ukraine in its fight against Russia and Israel for the war with Hamas. (AP Photo/Denis Poroy, File)

Asylum-seekers walk to a U.S. Border Patrol van after crossing the nearby border with Mexico, Tuesday Sept. 26, 2023, near Jacumba Hot Springs, Calif. Migrants continue to arrive to desert campsites along California’s border with Mexico, as they await processing. Congress is discussing changes to the immigration system in exchange for providing money to Ukraine in its fight against Russia and Israel for the war with Hamas.

FILE - Families evacuated from Kabul, Afghanistan walk through the terminal to board a bus after they arrived at Washington Dulles International Airport, in Chantilly, Va., Sept. 1, 2021. Under President Joe Biden, the U.S. has relied heavily on humanitarian parole. The U.S. airlifted nearly 80,000 Afghans from Kabul, the capital of Afghanistan, and brought them to the U.S. after the Taliban takeover. (AP Photo/Gemunu Amarasinghe, File)

Families evacuated from Kabul, Afghanistan walk through the terminal to board a bus after they arrived at Washington Dulles International Airport, in Chantilly, Va., Sept. 1, 2021. Under President Joe Biden, the U.S. has relied heavily on humanitarian parole. The U.S. airlifted nearly 80,000 Afghans from Kabul, the capital of Afghanistan, and brought them to the U.S. after the Taliban takeover.

FILE - Migrants who crossed the Rio Grande and entered the U.S. from Mexico are lined up for processing by U.S. Customs and Border Protection, Saturday, Sept. 23, 2023, in Eagle Pass, Texas. Congress is discussing changes to the immigration system in exchange for providing money to Ukraine in its fight against Russia and Israel for the war with Hamas. (AP Photo/Eric Gay, File)

Migrants who crossed the Rio Grande and entered the U.S. from Mexico are lined up for processing by U.S. Customs and Border Protection, Saturday, Sept. 23, 2023, in Eagle Pass, Texas. Congress is discussing changes to the immigration system in exchange for providing money to Ukraine in its fight against Russia and Israel for the war with Hamas.

FILE - President Joe Biden talks with U.S. Border Patrol agents as they walk along a stretch of the U.S.-Mexico border in El Paso Texas, Sunday, Jan. 8, 2023. A deal to provide further U.S. assistance to Ukraine by year-end appears to be increasingly out of reach for President Joe Biden. Republicans are insisting on pairing the funding with changes to America’s immigration and border policies. (AP Photo/Andrew Harnik, File)

President Joe Biden talks with U.S. Border Patrol agents as they walk along a stretch of the U.S.-Mexico border in El Paso Texas, Sunday, Jan. 8, 2023. A deal to provide further U.S. assistance to Ukraine by year-end appears to be increasingly out of reach for President Joe Biden. Republicans are insisting on pairing the funding with changes to America’s immigration and border policies.

FILE - Migrants form lines outside the border fence waiting for transportation to a U.S. Border Patrol facility in El Paso, Texas, May 10, 2023. A deal to provide further U.S. assistance to Ukraine by year-end appears to be increasingly out of reach for President Joe Biden. Republicans are insisting on pairing the funding with changes to America’s immigration and border policies. (AP Photo/Andres Leighton, File)

Migrants form lines outside the border fence waiting for transportation to a U.S. Border Patrol facility in El Paso, Texas, May 10, 2023. A deal to provide further U.S. assistance to Ukraine by year-end appears to be increasingly out of reach for President Joe Biden. Republicans are insisting on pairing the funding with changes to America’s immigration and border policies.