Bijan Kian, a former associate of Michael Flynn, was accused of working for the Turkish government but the prosecutors were unable to bring evidence.
With his name officially cleared over accusations of collusion with Russia during the 2016 elections, the US president can use his exoneration for political advantage, but he still has hurdles to clear.
"We are going to initiate investigations into abuses of power, into corruption and into obstruction of justice," the chairman of the House committee, Rep. Jerrold Nadler, D-N.Y. said. "We will do everything we can to get that evidence."
Revelations of the Trump administration’s attempt to transfer nuclear technology to Saudi Arabia are part of a broader pattern.
Senator Lindsey Graham was reacting to former FBI deputy director Andrew McCabe's comments that US President Trump might have committed a crime in handling the Russia probe and top officials discussed invoking the 25th Amendment.
Michael Flynn pleaded guilty in December 2017 to lying to FBI agents about his conversations with Sergei Kislyak, Russia's ambassador in Washington at the time.
Special Counsel Robert Mueller's office says Donald Trump's former national security advisor Michael Flynn provided substantial assistance in its investigation into Russia's alleged interference in the 2016 US presidential election.
Maria Butina was charged with conspiring to act as an agent of Russia "by developing relationships with US persons and infiltrating organizations having influence in American politics."
The 15-page memo released to Congress offer new details about a series of interactions that former FBI director James Comey had with US President Donald Trump in the weeks before his May 2017 firing.
Comey's remarks are the latest salvo in a war of words with US President Donald Trump, which comes ahead of the release of Comey's memoir later this week.
If the US ends up reinstating sanctions on Iran it will likely push the EU to sweeten the deal for the Iranians. The problem is that this might lead to a conflict between Israel and Hezbollah.
Trump made his assertion as the White House and allies in Congress have stepped up attacks on the investigation's credibility.
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