A longtime ally of U.S. President Donald Trump was arrested on Friday for lying to Congress about the 2016 campaign's efforts to use stolen emails to undercut his Democratic rival in the latest arrest of the Special Counsel probe into possible election manipulation. Roger Stone, a 66-year-old self-proclaimed Republican "dirty trickster," declared himself innocent hours after a large team of FBI agents raided his home in Fort Lauderdale, Florida. Mueller said in court papers that Stone shared with multiple members of the Trump campaign team advance knowledge he had of a plan by WikiLeaks to release senior Democrats' emails.