Scott Olson/Getty ImagesPresident Donald Trump went on a Thursday morning tweetstorm aimed at former Homeland Security Secretary Jeh Johnson, who testified before the House Intelligence Committee Wednesday, claiming Johnson had vindicated him with regard to the ongoing Russia investigation. Trump also asked why President Barack Obama's administration "didn't stop" Russia "if" the nation was found to be meddling in the 2016 election. "Former Homeland Security Advisor Jeh Johnson is latest top intelligence official to state there was no grand scheme between Trump & Russia," Trump tweeted. During Johnson's testimony, Republican Rep.