moulton announced he is ending his campaign and instead running for re-election to the house. just last hour the congressman criticized the primary process, particularly who gets to be on the debate stage. >> the fact that governor bullock is not going to have a place on the debate stage is a real challenge. i don't think it's a good thing for our party or for our country that we're not hearing his voice on the debate stage in september. but there are an awful lot of important voices that are being excluded. and that's just the way that the race is played out. >> the congressman told the new york times "i think it's evident that this is now a three-way race between biden, warren and sanders. nbc road warrior ali vitali joins me now from san francisco. ali, this is an interesting critique that seth moulton has made about the party. there have been a lot of critiques, particularly from the low polling candidates about the threshold that the democratic party has imposed on how you get onto the next debate stage. but he's been clearer about this. he says this is a three-way