grassroots support. here's how o'rourke explained part of that to me earlier this morning. >> all of it came from people, not a dime from pacs or lobbyists. it helps us on our way to becoming the largest grassroots campaign this country has ever seen. >> reporter: and that's the reality for o'rourke. they have to still build this grassroots campaign. they are very much putting this together as they go, hitting not just the early states but some of the states in the midwest where they hope they can be competitive in a general election or in some of those later primaries. and so those money numbers will continue to be interesting. and as you compare them to o'rourke -- or to bernie sanders, who i think is somebody who the o'rourke campaign is targeting against here in terms of just the pure money side of it, yes, the average contribution number is higher. that's something that some folks are paying attention to. the total number of donors is lower. but compared to someone who's been a presidential candidate before and has the bigger name