US President-elect Donald Trump confirmed on Monday that he plans to declare a state of emergency and use the US military to carry out mass deportations, Axios writes.

Trump has made his promise to deport millions of illegal immigrants one of the cornerstones of his 2024 election campaign, and his team has already begun strategizing how to implement his plan.

Social Truth's social media post early Monday is the first time a U.S. president-elect has confirmed how his administration will implement the controversial plan.

Tom Fitton, president of the conservative group Judicial Watch, wrote on Truth Social earlier this month that Trump “is prepared to declare an emergency and will use military means to reverse Biden's invasion with a mass deportation program.”

On Monday, Trump reposted Fitton's comment with the caption, “TRUE!!!!!”

There are an estimated 11 million undocumented immigrants living in the United States. Trump's mass deportations are expected to affect about 20 million families across the country.

Immigration advocates and lawyers are preparing to oppose the plan in court. The U.S. president-elect's team is seeking to craft executive orders that can withstand litigation to avoid a similar defeat that befell the Muslim ban in Trump's first term, Politico reported.

Their plans also include ending a parole program for illegal immigrants from Cuba, Haiti, Nicaragua and Venezuela, Politico reported.