>>> good day, i'm chris jansing in for andrea mitchell on a day of political power players emphasizing the stakes and setting the tone really with candidates from both parties. this week is looking like the trail you're actually used to seeing days before a presidential election. because you've got trump, obama, biden, all in critical battleground states, often the same ones, and all on the same mission, send a message that will resonate with the voters, enough to get them off their couches and out to the polls. we have our team of reporters. good to see all of you, the president's tweet this morning said it all, big night in texas, they have moved to a bigger venue, the lines in houston have been around the block since sunday afternoon, and the president's campaign blitz will put him on stage with the man he