washington. andrea is on assignment overseas with secretary pompeo. while here at home, the growing list of democratic presidential candidates are trying to stand out. elizabeth warren and kirsten gillibrand using dueling town halls to make headlines on the future of presidential voting and the "me too" movement while beto o'rourke continues to barnstorm through the rust belt following multiple stops in michigan and ohio on monday, with a visit to pennsylvania this morning in front of a fired-up penn state student section. >> that's why i'm running to represent you, to serve you, to work with you, as the next president of the united states. [ cheers and applause ] >> all the current and potential candidates in the field are still waiting on one man, vice president joe biden, to make his move and solidify his place as the early frontrunner. joining me now, nbc political analyst robert costa, moderator of "washington week."