Sarah Matusek

Portland, Oregon, is the latest city where President Donald Trump is activating National Guard troops for novel use in a fight against crime and illegal immigration. Here’s a big-picture look at how the U.S. government has directed the National Guard this year.

Immigration is key to Trump’s urban crime crackdown. DC is a case study.

The Trump administration is expanding National Guard support at immigration detention sites. Florida activated troops on Tuesday.

Congress provided more than $170 billion to assist President Trump’s deportation campaign. Scaling up immigration enforcement efforts comes with steep logistical challenges.

President Donald Trump pledged to deport millions of unauthorized immigrants. A new arrest tactic to advance that goal is ringing due process alarms.

The Trump administration is expanding the military role at the border through new national defense areas, raising questions about militarization of the border.

The leaders of the United States and El Salvador say they can't be forced to return a man deported in error from the U.S., setting up a struggle between the executive branch and the courts.

President Trump has tapped existing but rarely used laws to aid his immigration actions. Supporters see pragmatism, while critics warn of overreach.

As the Trump administration claims broad authority to deport “alien enemies” and others, questions arise about whether immigrants have rights in court.

Planned limitations on Canadian access to the Haskell Free Library & Opera House, which spans the U.S.-Canada border, symbolize a fraying relationship between towns with traditionally close ties.