India, July 8 -- A federal lawsuit filed Tuesday accuses the Trump administration of illegally sharing confidential asylum application details with the Iranian government, alleging a secretive, monthslong exchange that legal advocates say has put hundreds of vulnerable detainees, including pro-democracy protesters, religious converts and LGBTQ individuals, at risk of imprisonment or worse if deported.

The suit, filed in US District Court in Washington by the Public Citizen Litigation Group on behalf of the Iranian American Legal Defence Fund, names the US Department of Homeland Security, US Secretary of State Marco Rubio, Homeland Security Secretary Markwayne Mullin and the US State Department as defendants. It alleges that since March 2...