Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Is Receiving Foreign 'Oppo Research' Legal? Masood Farivar WASHINGTON - The brouhaha over U.S. President Donald Trump's "oppo research" comments -- that he'd be willing to accept outside foreign government political assistance -- comes down to this question: Is opposition research a "thing of value" that foreign nationals are prohibited from offering to American political campaigns? In an interview with ABC News on Wednesday, Trump said he'd consider any foreign-sourced information that would help his 2020 re-election bid. "There is nothing wrong with listening," Trump said. "If somebody called from a country -- Norway -- 'We have information on your opponent.' Oh. I think I'd want to hear it." .