>> Local law enforcement.>> The special counsel investigating whether Russia tried to sway the 2016 US election is looking into the most salacious allegations of President Donald Trump's ties to Moscow. Sources telling Reuters that former FBI director Robert Mueller is probing a dossier compiled by a former British spy named Christopher Steel.
Its contents suggesting Trump has ties to Russian intelligence officers and others working on behalf of the Russian government. Reuters National Security Correspondent Mark Hosenball.>> Central contention of the findings in the Christopher Steel dossier is that Trump, Donald Trump himself, and some of the people around him have a history of dealing with people in Russia for business purposes, initially.
And that these business dealings essentially grew into a relationship in which the Russians were able to place people, or Trump hired people that were close to the Russians, to help advise him during the campaign. And subsequently, these people have continued to have influence over him.>> The dossier also makes unsubstantiated claims suggesting inflammatory and salacious behavior.
>> It's basically alleged that the Russians collected stuff with which they could, I think the nasty word is, blackmail Donald Trump.>> Special Counsel Robert Mueller took over the Justice Department's probe of alleged Russian influence in the US election. He was appointed after the president fired FBI director James Comey.
House and Senate committees are also conducting inquiries into the matter. The allegations include that Russia was behind an effort to steal and leak Democratic Party emails in an effort to damage Trump's rival Hillary Clinton. But focus has moved on to whether people within the Trump campaign knew about Russia's intentions and cooperated in the effort.
>> There was no collusion.>> Trump has repeatedly denied the allegations and called the Russian inquiry a hoax and a witch hunt. Russia denies meddling in the US election.