Dow soars past 21,000 for the first time: Will the ‘Trump effect’ last?

On Wednesday the Dow Jones industrial average broke the 21,000 mark for the first time ever, after President Trump addressed a joint session of Congress and laid out a broad and ambitious agenda. Some are calling it the “Trump effect,” but will it last? NBC News chief business correspondent Ali Velshi reports for TODAY.March 2, 2017