Trump kicks off 2020 campaign, claims economy is 'envy of the world'

President Trump kicked off his re-election campaign in Orlando Tuesday. Sporting signs and red hats bearing the same 2016 slogan, 'Make America Great Again', the president called his election victory and presidency a turning point in history. KTVU's Jana Katsuyama reports he made pointed comments at California and also portrayed himself as a victim of a political "witch hunt."