Donald Trump's administration is considering mobilising as many as 100,000 National Guard troops to round up undocumented immigrants, it has been reported.

The Associated Press obtained a draft memo that calls for the unprecedented militarisation of the US immigration enforcement. But if implemented, governors in 11 states included in the draft memo would have final say on whether troops are actually deployed.

The draft memo, written by Department of Homeland Security Secretary John Kelly, includes four states that border Mexico – Texas, New Mexico, Arizona, and California – but extends to seven contiguous states – Louisiana, Arkansas, Oklahoma, Colorado, Utah, Nevada, and Oregon.

States like California would be unlikely to comply with the Trump administration should it actually call for the deployment of National Guard troops for immigration enforcement.

The controversial orders Donald Trump has already issued Show all 9 1 /9 The controversial orders Donald Trump has already issued The controversial orders Donald Trump has already issued Trump and the media White House Press Secretary Sean Spicer takes questions during the daily press briefing Getty Images The controversial orders Donald Trump has already issued Trump and the Trans-Pacific Partnership Union leaders applaud US President Donald Trump for signing an executive order withdrawing the US from the Trans-Pacific Partnership negotiations during a meeting in the Roosevelt Room of the White House in Washington DC. Mr Trump issued a presidential memorandum in January announcing that the US would withdraw from the trade deal Getty The controversial orders Donald Trump has already issued Trump and the Mexico wall A US Border Patrol vehicle sits waiting for illegal immigrants at a fence opening near the US-Mexico border near McAllen, Texas. The number of incoming immigrants has surged ahead of the upcoming Presidential inauguration of Donald Trump, who has pledged to build a wall along the US-Mexico border. A signature campaign promise, Mr Trump outlined his intention to build a border wall on the US-Mexico border days after taking office Getty Images The controversial orders Donald Trump has already issued Trump and abortion US President Donald Trump signs an executive order as Chief of Staff Reince Priebus looks on in the Oval Office of the White House. Mr Trump reinstated a ban on American financial aide being granted to non-governmental organizations that provide abortion counseling, provide abortion referrals, or advocate for abortion access outside of the United States Getty Images The controversial orders Donald Trump has already issued Trump and the Dakota Access pipeline Opponents of the Keystone XL and Dakota Access pipelines hold a rally as they protest US President Donald Trump's executive orders advancing their construction, at Columbus Circle in New York. US President Donald Trump signed executive orders reviving the construction of two controversial oil pipelines, but said the projects would be subject to renegotiation Getty Images The controversial orders Donald Trump has already issued Trump and 'Obamacare' Nancy Pelosi who is the minority leader of the House of Representatives speaks beside House Democrats at an event to protect the Affordable Care Act in Los Angeles, California. US President Donald Trump's effort to make good on his campaign promise to repeal and replace the healthcare law failed when Republicans failed to get enough votes. Mr Trump has promised to revisit the matter Getty Images The controversial orders Donald Trump has already issued Donald Trump and 'sanctuary cities' US President Donald Trump signed an executive order in January threatening to pull funding for so-called "sanctuary cities" if they do not comply with federal immigration law AP The controversial orders Donald Trump has already issued Trump and the travel ban US President Donald Trump has attempted twice to restrict travel into the United States from several predominantly Muslim countries. The first attempt, in February, was met with swift opposition from protesters who flocked to airports around the country. That travel ban was later blocked by the Ninth Circuit Court of Appeals. The second ban was blocked by a federal judge a day before it was scheduled to be implemented in mid-March SANDY HUFFAKER/AFP/Getty Images The controversial orders Donald Trump has already issued Trump and climate change US President Donald Trump sought to dismantle several of his predecessor's actions on climate change in March. His order instructed the Environmental Protection Agency to reevaluate the Clean Power Plan, which would cap power plant emissions Shannon Stapleton/Reuters

Last month, the President signed two executive orders pertaining to the southern border with Mexico. The first directed the construction of a wall in the region, despite the existence of some 700 miles of barrier already in place. The second boosted the number of Border Patrol agents and immigration enforcement officers who carry out raids and deportations.

White House Press Secretary Sean Spicer denied the report as "100 per cent false" on Twitter, but could not say that the subject was never a topic of discussion within the administration.

"I don't know what could potentially be out there, but I know that there is no effort to do what is potentially suggested," he said. "It is not a White House document."

The acting press secretary for the DHS also denied the report, saying: "The Department is not considering mobilising the National Guard."

But it remains unclear whether the White House will carry out this order as reported, as the administration has become notorious for attempting to discredit news stories that cast a unfavourable light on the President, writing them off as "fake".

Mr Trump launched his campaign with particular focus on immigrants from Mexico, criminalising them with broad brushstrokes. In his now infamous June 2015 campaign announcement, he referred to Mexican immigrants as rapists and drug traffickers, solidified with his vow to build a wall along the already-militarised southern border.

In the first month of Mr Trump's administration, immigration enforcement officers carried out the first large-scale enforcement of Mr Trump's executive order to take action against undocumented people in the US.

Raids took place last week in and around New York, Los Angeles, North Carolina, South Carolina, Atlanta and Chicago, immigration officials confirmed – with more than a third of those detained in the Los Angeles area being deported to Mexico.

Democratic Texas Rep Joaquin Castro condemned the draft and called it "disturbing".

Loading....

"I'm hoping that it's not true, but you get five different answers on controversial issues depending on who you ask [in the Trump administration]," he said during a conference call with reporters. "So it's hard to know when Sean Spicer's denial is actual policy.

"The President needs to address this; the President needs to be clear about his intentions and whether he intends to use the National Guard as immigration agents."

Mr Castro explained that, following a meeting with ICE, it was hard to "not conclude that Donald Trump has started his mass deportation plan". In the meeting ICE officials referred to the President's executive order to crack down on undocumented immigrants and acknowledged that it was a much broader mandate than President Barack Obama's.

Donald Trump wants import tax to pay for Mexico wall

"They seemed determined to go after as many people as possible because of the language of the executive order," he said. "And the ICE director was very clear that they were going to follow that message."

Immigrants who face the threat of removal have the right to due process. A mass deportation operation would likely still require full removal proceedings, leading to mass incarceration and increase the likelihood of erroneous detentions. Mr Trump's actions could lead to an increase in immigration detention populations from about 45,000 daily to three million.

Loading....

Christian Ramirez, the director of the Southern Border Communities Coalition and human rights director for Alliance San Diego, expressed concern about the panic that will stem from this report, as well as the fear that Mr Trump has already generated in immigrant communities along the US-Mexico border.

"Any talk about deploying military personnel to our communities is not only of great concern to border residents who have been living under the boot of border militarisation for generations, but it should be of great concern to our democracy," he told The Independent.

"Having military personnel enforce civilian laws runs counter to basic principles of democratic societies and we should be concerned with the notion of this being contemplated by this administration."

Still, Mr Ramirez explained immigrant communities along the border were already heavily policed by the Border Patrol, the largest law enforcement agency in the country.

Mr Trump's enforcement efforts are made possible by infrastructure that has already been fortified by previous administrations. The Obama administration was fiercely criticised by immigrant rights groups for its part in ramping up immigration enforcement in the US.

Under Obama, ICE carried out some 2.5 million deportations between 2009 and 2015.

"When it comes to the actual enforcement, we had gross cases of human rights violations along the southern border under Obama," Mr Ramirez said.

"I think what is clear is that President Trump inherited a massive deportation machine and has control of the largest law enforcement agency in the country, which Congress granted these absolute powers to look the other way when it comes to protecting our Constitutional rights.