The order will deploy 1,500 troops to build physical barriers, but they will not be used for law enforcement, a military official says.

"My office is a law enforcement entity. We are going to follow the Constitution and uphold the law," Krasner said as Trump officials threatened consequences for uncooperative local officials.

Trump has issued directives to expedite the removal of millions of undocumented immigrants from the U.S., which has immigrant groups bracing for raids.

In line with Trump’s edict, CNN’s Natasha Bertrand, Priscilla Alvarez, Haley Britzky and Oren Liebermann report. They’re expected to beef up existing operations to support Customs and Border Protection,

Trump, as expected, signed a flurry of executive orders on his first day back in office. Some, such as border- and immigration-related actions, are likely to directly affect Arizonans. Others, such as an effort to undo electric auto production,

Shortly after taking office, President Trump issued 11 executive orders cracking down on illegal immigration. The orders target what he sees as an invasion at the southern border and significantly alter how the U.