PALM BEACH, Fla. - US President Donald Trump and Russian President Vladimir Putin discussed counterterrorism cooperation and the potential for arms control in a phone call on Sunday, the White House said. Putin called Trump to thank him for 'information the United States provided that helped foil a potential holiday terrorist attack in Russia,' said White House spokesman Hogan Gidley. Russia said on Sunday it had thwarted attacks reportedly planned in St. Petersburg thanks to a tip from Washington.