Virtually all members of the U.S. House of Representatives backed a bill on Monday aimed at shutting down underground tunnels into the country used to smuggle illegal immigrants and drugs.

Only one lawmaker disagreed on the need: U.S. Congresswoman Rashida Tlaib, D-Detroit.

“Since 1990, officials have discovered more than 140 tunnels that have breached the U.S. border with an 80% increase in tunnel activity occurring since 2008,” Rep. Eli Crane, the Texas Republican who sponsored the Subterranean Border Defense Act, said on Monday’s House floor. “With border crossings thankfully going down since January, I think it’s safe to assume this will drive threats to our border underground through these tunnels.”

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Rep. Lou Correa, D-Calif., co-sponsored the legislation, which Fox News described as “an important step in the right direction.”

Once signed into law, the act “will improve Congress’ efforts to counter illicit cross-border tunnels and hold bad actors accountable,” Correa said.

The legislation aims to mandate an annual report to Congress from U.S. Customs and Border Protection detailing how cartels are using the tunnels and how law enforcement is working to stop it.

Tlaib’s opposition was notable amid the rare show of bipartisanship, with Republicans suspending the rules to fast-track the bill, which elevates the required approval threshold to two-thirds.

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Congress’ only Palestinian congresswoman didn’t bother to explain why she opposed cross-border tunnels through press updates or social media.

She had bigger priorities on Monday.

“Free Mahmoud Khalil,” Tlaib posted to her congressional X account on Monday. “This is straight out of the fascist playbook. Criminalizing dissent is an assault on our First Amendment and freedom of speech. Revoking someone’s green card for expressing their political opinion is illegal. Protesting genocide is not a crime.”

The post linked to a report from The Associated Press about Khalil’s arrest by Immigration and Customs Enforcement agents at a Columbia University apartment on Saturday. Khalil, a graduate student at the school until December, was a key figure in pro-Hamas campus protests last year.

The arrest followed President Donald Trump’s promise to remove foreign students who terrorized college campuses across the country in protest of Israel’s defense against Hamas.

Tricia McLaughlin, spokesperson for the Department of Homeland Security, told the AP Khalil “led activities aligned to Hamas, a designated terrorist organization.”

She confirmed in a statement on Sunday his removal was “in support of President Trump’s executive orders prohibiting anti-Semitism.”

The AP described Khalil, who finished a master’s degree in international affairs last semester, as “a negotiator for students a they bargained with university officials over an end to the tent encampment erected on campus last spring.”

“Khalil was also among those under investigation by a new Columbia University office that has brought disciplinary charges against dozens of students for their pro-Palestinian activism, according to records shared with the AP.”

Similar protests took place in Michigan, where Jewish Democratic Attorney General Dana Nessel drew insinuations of bias from Tlaib when she announced charges against 11 pro-Palestinian protestors at the University of Michigan in September.

Tlaib has also refused to condemn “death to America” chants at rallies in her district, voted against legislation to block funds for Iranian terrorism, and rallied with UM protestors to demand the university divest from Israel and companies that support it.

The fourth-term Democrat also played a key role in Trump’s victory in Michigan in November, helping to rally more than 100,000 Democratic voters to oppose the Biden-Harris administration’s policies in Gaza.

Trump, meanwhile, is defending Khalil’s deportation as “one of many to come.”

“We know there are more students at Columbia and other Universities across the Country who have engaged in pro-terrorist, anti-Semitic, anti-American activity, and the Trump Administration will not tolerate it,” he wrote in a post to Truth Social on Monday. “Many are not students, they are paid agitators. We will find, apprehend, and deport these terrorist sympathizers from our country – never to return again.

“If you support terrorism, including the slaughtering of innocent men, women, and children, your presence is contrary to our national and foreign policy interests, and you are not welcome here,” Trump wrote.  “We expect every one of America’s Colleges and Universities to comply.”