WASHINGTON (AP) — Roger Stone, a longtime adviser and confidant of President Donald Trump, pleaded not guilty Tuesday to charges in the Russia investigation after a publicity-filled few days spent torching the probe as politically motivated.The political operative and self-proclaimed dirty trickster appeared for his arraignment at the federal courthouse in Washington. He faces charges that he lied to lawmakers, engaged in witness tampering and obstructed a congressional investigation into possible coordination between Russia and Trump’s 2016 presidential campaign.Stone made no public statements as he arrived for the hearing in a black SUV. He waved to a small crowd of supporters chanting that he did nothing wrong and holding up glowing photos of him. And he largely ignored a group of protesters yelling “Lock him up” and carrying signs reading “dirty traitor.” 14 PHOTOS Roger Stone through the years See Gallery Roger Stone through the years Political advisor Roger Stone poses for a portrait following an interview in New York City, U.S., February 28, 2017. REUTERS/Brendan McDermid UNITED STATES – JANUARY 03: Attorney Roy Cohn (c.) with Roger Stone (l.) and Mark Fleischman (r.). (Photo by Richard Corkery/NY Daily News Archive via Getty Images) American Ronald Reagan and Roger Stone…