Democrats Turn to Online Tool for Organizing Volunteers

MobilizeAmerica gives campaigns a centralized sign-up system for events and canvassing

MobilizeAmerica is becoming the go-to platform for Democrats mobilizing grassroots activists and volunteers. Cory Booker, Kamala Harris and other 2020 presidential hopefuls are using it. WSJ’s Jason Bellini sat down with the company's founders. Photos: AP and Getty

Julie Bykowicz

March 4, 2019 9:00 a.m. ET

NEW YORK—As Sens. Kamala Harris, Kirsten Gillibrand and Cory Booker kicked off their Democratic presidential campaigns, they asked supporters to register for rallies and town halls, routing them all to the same online platform, MobilizeAmerica.

The two-year-old tech company, based in New York, gives Democratic campaigns and progressive causes a centralized sign-up system for events, door-knocking and shifts calling and texting voters. The volunteers’ information is saved on the MobilizeAmerica website, and they are exposed...