"Increased support is needed to obtain proof of life of hostages and detainees, retrieve their remains, secure accountability and deter future hostage-taking," it said.
Zuberi was sentenced to 12 years in prison for tax evasion, foreign-influence peddling, and campaign finance violations
The Pakistani-American businessman was also involved in a major political fundraiser for American leaders like Barack Obama, Hillary Clinton, Donald Trump, Joe Biden, and Kamala Harris
In a decision on Thursday night, US District Judge Sean Jordan said the government had not waived its sovereign immunity from being sued. The judge said that as a result, he lacked jurisdiction over the case.