This legislation is the most significant immigration enforcement and border security related bill to pass the Senate in nearly three decades.

The bill will be considered by the U.S. House of Representatives this week before heading to President Trump to be signed into law.

Deporting millions of migrants or enforcing the Laken Riley Act will largely depend on Congress' ability to allocate roughly $100 billion.

Under the bill, called the Laken Riley Act, state attorneys general like Ken Paxton would have the ability to challenge federal immigration officials.

The House voted on Wednesday to pass a GOP-led bill to require detention of undocumented migrants charged with certain crimes, handing an early legislative win to President Donald Trump and congressional Republicans,

The US Congress has passed a bill requiring undocumented immigrants who are arrested for theft or violent crimes to be held in jail pending trial. The bill, named after Laken Riley - a Georgia nursing student murdered last year by a Venezuelan man - passed the House of Representatives a day after it was approved by the Senate.

The Laken Riley Act allows illegal immigrants suspected of theft and violent crimes to be detained. It marks the first legislation that President Donald Trump will sign into law, and it passed with bipartisan support.