WASHINGTON: President-elect Donald Trump confirmed on Monday that he plans to declare a national emergency on and use the US military to carry out a mass deportation of undocumented migrants. Immigration was a top issue in the election campaign, and Trump has to deport millions and stabilise the border with after record numbers of migrants crossed illegally during President Joe Biden’s administration. On his social media platform Truth Social, Trump amplified a recent post by a conservative activist that said the was “prepared to declare a national emergency and will use military assets to reverse the Biden invasion through a mass deportation programme.” Alongside the repost, Trump commented, “True!” Trump sealed a remarkable comeback to the presidency in his Nov 5 of Democratic Vice President Kamala Harris. He has been a cabinet featuring immigration hardliners, naming former Immigration and Customs Enforcement acting chief Tom Homan as his “border czar.” Homan appeared at the Republican National Convention in July, telling supporters: “I got a message to the millions of illegal immigrants that Joe Biden’s released in our country: You better start packing now.” Authorities estimate that some 11 million people are living in the United States illegally. Trump’s deportation plan is expected directly to impact around 20 million families. President-elect’s surveillance power worries civil rights groups While the US government has struggled for years to manage its southern border with Mexico, Trump has by claiming an “invasion” is underway by migrants he says will rape and murder Americans. During his campaign, Trump repeatedly railed against undocumented immigrants, employing incendiary rhetoric about foreigners who “poison the blood” of the United States and misleading his audiences about immigration statistics and policy. Trump has not elaborated on his immigration crackdown in any detail but during his election campaign repeatedly vowed to invoke the Alien Enemies Act of 1798 to speed up deportations. Critics say the law is outdated and point to its most recent use during World War II to hold Japanese-Americans in internment camps without due process. The number of US border patrol encounters with migrants crossing from Mexico illegally is now about the same as in 2020, the last year of Trump’s first term, after peaking at a record 250,000 for the month of Dec 2023. Civil liberties and immigration rights groups worry Donald Trump’s incoming administration could use powerful law enforcement surveillance and big data technology to press ahead with some key policies, risking infringing on privacy rights. The concerns about surveillance powers are particularly acute among immigration rights groups, which worry that a Trump administration would be able to harness data brokers, facial recognition, and other tools to create lists of immigrants it would want to deport.