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British Prime Minister Rishi Sunak speaks during a press conference in London on Monday regarding a treaty between Britain and Rwanda to transfer asylum-seekers to the African country.

Toby Melville/Pool/AFP via Getty Images

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Toby Melville/Pool/AFP via Getty Images

British Prime Minister Rishi Sunak speaks during a press conference in London on Monday regarding a treaty between Britain and Rwanda to transfer asylum-seekers to the African country.

Toby Melville/Pool/AFP via Getty Images

LONDON — More than two years after it was first introduced, the British government’s controversial plan to deport asylum-seekers to Rwanda is set to become law.

The unelected House of Lords cleared the way for the bill to become law after dropping the last of its suggested amendments, The Associated Press reported.

Even before his flagship policy passed, British Prime Minister Rishi Sunak on Monday took to a lectern emblazoned with the slogan “stop the boats” — a reference to one of his key election campaign pledges. At a press conference, he told reporters he would stop at nothing to pass the legislation, in order to deter people without visas from crossing the English Channel from France to England.

“No ifs, no buts. These flights are going to Rwanda,” Sunak said.

The plan is to send some of the people the government says arrive illegally in the U.K. to Rwanda, where local authorities would process their asylum claims.

The U.K. signed a deal with Rwanda in April 2022, in which Rwanda agreed to process and settle asylum-seekers who initially arrive in Britain.

The U.K. government says the threat of being deported to Rwanda will deter migrants from making the dangerous journey across the Channel. It recorded more than 4,600 migrants crossing the Channel from January to March, surpassing a previous total for that period.

Critics and lawmakers say there’s no evidence the plan would work as a deterrent.

Sunak, who is trailing in the polls ahead of an election expected this fall, is staking his Conservative Party’s reelection campaign on this plan, despite several legal challenges from top British and European courts. In one of his latest moves, last year, Sunak introduced “emergency” legislation to write into British law that Rwanda is a safe country, in an attempt to salvage the plan after it was struck down by the U.K. Supreme Court.

No flights deporting migrants have left from London for Rwanda in the two years since the plan was first announced by then-Prime Minister Boris Johnson. In June 2022, a plane was grounded by an eleventh-hour ruling from the European Court of Human Rights, which intervened to stop the deportation of one of the asylum-seekers on the flight.

This provided grounds for the remaining six people on the flight to put forward legal challenges in London courts. Last year, NPR spoke with an asylum-seeker from Iran, who was on that grounded plane.

“They treated us like criminals and murderers. Every knock on the door, I think it’s the authorities coming to escort us back to that plane,” the man, now living temporarily in a hotel, told NPR.

The plan has drawn widespread criticism from human rights groups and lawmakers from different parties, including some in Sunak’s own party, who say it is incompatible with the U.K.’s responsibilities under international human rights law. Many also say it’s no coincidence that Sunak is pushing this through Parliament within months of an expected election.

“A lot of this is performative cruelty,” says Daniel Merriman, a lawyer who has represented some of the asylum-seekers who were slated to be deported to Rwanda in the past. “The elephant in the room in the upcoming election.”

Opinion polls show the British public is largely divided over the idea of deporting asylum-seekers to Rwanda.

“On the principle, people are split down the middle really,” says Sunder Katwala, director of British Future, a nonpartisan think tank that researches public attitudes. “On the question of whether it’s going to happen, whether it’s going to work and whether it’ll be value for money, there’s a majority that are very skeptical of this already.”

The British government has already paid Rwanda nearly $300 million to take asylum-seekers

While Sunak’s Conservatives largely support the transfer to Rwanda, some hard-liners in his party say the latest version of the legislation, which has been rewritten several times, isn’t tough enough. Suella Braverman, a former home secretary who spearheaded the Rwanda plan when she was in office, said the latest version was “fatally flawed,” with “too many loopholes” that would fail to stop the crossings.

While Sunak may have overcome one hurdle this week, experts say he can expect others.

“His real headaches might be ahead. Now he’s got to show whether it works or not,” Katwala says.

One challenge may be getting an airline to agree to participate. On Monday, experts from the United Nations’ High Commissioner for Human Rights warned aviation authorities against facilitating what it called “unlawful removals” of asylum-seekers to Rwanda, saying they risk violating international human rights laws.