Since returning to the White House, President Donald Trump has launched an unprecedented campaign of immigration enforcement that has pushed the limits of executive power and clashed with federal judges trying to restrain him

Americans hold mixed views on President Donald Trump's immigration policies, according to a ABC News/Washington Post/Ipsos poll.

The Trump administration plans to strictly require anyone illegally in the U.S. to register with the government and carry documentation

As President Donald Trump seeks to make good on his campaign pledge of mass arrests and removals of migrants, the U.S. immigration detention system is being overrun with prisoners

A judge has ordered the Trump administration to facilitate the return of a 20-year-old Venezuelan man deported to El Salvador in violation of a previous court settlement.

The DOJ is giving migrants who are given a notice of removal under the Alien Enemies Act "no less than 12 hours" to indicated that they intend to contest deportation.

Government lawyers say officers did not have a warrant for Columbia activist Mahmoud Khalil’s arrest when they took him into custody, according to court filings.

Mohsen Mahdawi was arrested by ICE during a citizenship interview last week.

Mohsen Mahdawi was arrested by ICE during a citizenship interview last week.

A judge has ordered the Trump administration to facilitate the return of a 20-year-old Venezuelan man deported to El Salvador in violation of a previous court settlement.

Here's how the case of Kilmar Abrego Garcia, who was deported to his home country of El Salvador despite a court order barring his deportation there, has progressed.

The Trump administration is acknowledging it deported four alleged Venezuelan gang members to El Salvador despite a court order barring such deportations.

Amid a tense legal battle over deportations, President Trump is now arguing undocumented migrants should not be given a trial before being removed from the country.

A day after a judge ordered the DOJ to more fully address the wrongful deportation of Kilmar Abrego Garcia, she paused discovery for the next seven days.

A federal judge paused discovery after ordering the government to more fully respond by Wednesday to requests from attorneys for wrongly deported Kilmar Abrego Garcia.

Mohsen Mahdawi, who was arrested by ICE during his citizenship interview, was present during the hearing.

The Trump administration is quietly revoking the temporary legal status of people who entered the country via an online appointment app at U.S. border crossings with Mexico

Rep. Yassamin Ansari is one of the Democratic lawmakers that went to El Salvador seeking the release of Kilmar Abrego Garcia, telling ABC News "this is about due process for everyone."

A judge rebuked President Trump's use of the Alien Enemies Act to deport alleged migrant gang members in New York, comparing it to a medieval inquisition.

Rep. Maxine Dexter, D-Ore., says her delegation left El Salvador without meeting Garcia, a Salvadoran native who had been living with his wife and children in Maryland before being deported in March.

The government of El Salvador on Monday rejected a request from four Democratic lawmakers to visit wrongly deported Kilmar Abrego Garcia.

A growing number of Republican-led states are taking aim at driver's licenses issued by other states to people in the U.S. illegally

While a student at Columbia University, Khalil was part of a leadership group protesting the war in Gaza. He was detained by ICE in March.

DOJ lawyers told a judge in Colorado that the administration can give accused migrant gang members at least 24 hours to contest deportation under the Alien Enemies Act.

During Francis’ time as pope, he spoke on a wide array of controversial and political issues, including immigration, same-sex marriage, LGBTQ rights and surrogacy.

Reps. Yassamin Ansari of Arizona, Maxine Dexter of Oregon, Maxwell Frost of Florida and Robert Garcia of California arrived in El Salvador to investigate the condition of Kilmar Abrego García.

The Supreme Court blocked the deportations of Venezuelan migrants held in Texas under President Donald Trump's Alien Enemies Act executive order.

19-year-old Venezuelan migrant Alessandro Paredes spoke to ABC News from a detention center in Texas after his deportation was blocked by the Supreme Court.

Sen. Chris Van Hollen, D-Md., shared a photo of his meeting with Kilmar Abrego Garcia in El Salvador on Thursday.

ACLU’s lead attorney describes the rapid pace that led to extraordinary Supreme Court ruling blocking Trump administration from deporting Venezuelans to El Salvador.

On "This Week," border czar Tom Homan defended the use of the Alien Enemies Act and Kilmar Abrego Garcia’s wrongful deportation.

Solicitor General John Sauer responded to the Supreme Court's order that temporarily blocked the removal of a group of Venezuelans detained in Texas to El Salvador, calling it "unprecedented."

ABC News’ Jonathan Karl interviews Trump administration border czar Tom Homan on “This Week.”

ABC News’ Jonathan Karl interviews Sen. Chris Van Hollen, D- Md., on “This Week.”

The Powerhouse Roundtable breaks down the latest news on “This Week.”

Sen. Chris Van Hollen defends due process after meeting a deported Maryland man in El Salvador on "This Week" with co-anchor Jonathan Karl.

A judge said Friday he lacks the authority to block deportations under the Alien Enemies Act, as a DOJ lawyer said they "reserve the right" to resume flights Saturday.

Border czar Tom Homan spoke with "This Week" co-anchor Jonathan Karl about the wrongful deportation of Kilmer Abrego Garcia.

Seven of the nine justices granted an emergency request from the ACLU to temporarily halt the removal of Venezuelan migrants to El Salvador.

Steven Dudley, author of "MS-13: The making of America's most notorious gang," joined ABC News Live to share insight into the inner workings of El Salvador's infamous CECOT prison.

Sen. Chris Van Hollen alleged that his meeting with Kilmar Abrego Garcia, who the U.S. government said was erroneously deported to El Salvador, was organized under questionable circumstances.

Congressman Nick Lalota (R-NY) discusses the Trump administration’s use of the Alien Enemies Act to carry out deportations, plus tariffs and flight safety Ronald Reagan Washington National Airport.

The Supreme Court has blocked, for now, the deportations of any Venezuelans held in northern Texas under an 18th century wartime law

A federal judge on Friday blocked the Trump administration from deporting noncitizens to countries other than their place of origin without due process.

The Supreme Court is again weighing in on their deportation plans as Senator Chris Van Hollen fights for the release of a man who was mistakenly deported to a notorious prison in El Salvador.

Sen. Chris Van Hollen joined the family of Kilmar Abrego Garcia after he returned from El Salvador and pushed the administration to bring the man back to the U.S.

Court filings and sworn declarations paint a complex picture of Kilmar Abrego Garcia, who sits at the center of one of the Trump administration's biggest legal standoffs.

A divided panel of judges has temporarily paused an effort to investigate whether the Trump administration engaged in contempt of court.

The senator returned to the U.S. from El Salvador, detailing his meeting with Kilmar Abrego Garcia, while Pres. Trump accuses Abrego Garcia of being a violent gang member.

Jonathan Karl interviews Trump administration border czar Tom Homan for "This Week."