President Joe Biden is set to announce a new policy that would protect hundreds of thousands of undocumented spouses of US citizens from deportation, according to administration officials.
The action will apply to those who have been in the country for at least 10 years and will allow them to work in the US legally.
It marks the most significant relief programme for undocumented migrants already in the US since the Obama administration announced the Deferred Action for Childhood Arrivals, or Daca, in 2012.
The White House believes more than 500,000 spouses of US citizens will benefit, in addition to 50,000 young people under 21 whose parent is married to an American citizen.
Earlier in June, Mr Biden vowed to make the US immigration system “more fair and more just”.
Polls show that immigration is a primary concern for many voters ahead of the presidential election this November.
