President Trump’s decision to launch his second term by declaring a national emergency at the U.S. border triggered an avalanche of opposition from Democratic governors, liberal members of Congress, and pro-migrant organizations vowing to challenge the constitutionality of his sweeping executive actions.

President Donald Trump on Monday kicked off his sweeping immigration crackdown, tasking the U.S. military with aiding border security, issuing a broad ban on asylum and taking steps to restrict citizenship for children born on U.

Hours earlier, thousands of would-be migrants had their immigration appointments cancelled after the new administration scrapped CBP One, an app used to book appearances at ports of entry at the border. In his inaugural address, Trump vowed that "all illegal entry will be halted" and that millions of "criminal aliens" will be deported.

By Ted Hesson and Alexandra Ulmer WASHINGTON/PIEDRAS NEGRAS, Mexico (Reuters) -President Donald Trump on Monday kicked off his sweeping immigration crackdown, tasking the U.S. military with aiding border security,

Shortly after his inauguration, President Donald Trump said he would declare a national emergency at the southern U.S. border, aimed at intensifying immigration enforcement. The declaration empowers federal agencies to redirect funds and resources to bolster border security,

Newly sworn-in U.S. President Donald Trump said on Monday that he would declare illegal immigration a national emergency, send troops to the U.S.-Mexico border, and reinstate his "remain in Mexico" policy as part of a sweeping immigration crackdown.

Trump, who will be sworn-in as president on Monday, is expected to sign as many as 100 executive orders by the end of the day, touching on issues ranging from immigration and energy to the economy and gender issues.