Barack Obama tweeted: You could be the next great grassroots organizer. Here's how: #OFAFellows

Popular in your network Barack Obama @BarackObama   You could be the next great grassroots organizer. Here's how: ofa.bo/i5VP #OFAFellows View on Twitter Science Museum of VA @ScienceMusofVA   Happy #BiketoWorkDay everyone! We're never two tired to celebrate such a healthy occasion! #biketoworkday2015 View on Twitter Blake Shelton @blakeshelton   IMG_3923.jpeg View on Twitter Taylor Swift @taylorswift13   Meet Headmistress. @CindyCrawford #BadBloodMusicVideo View on Twitter SportsCenter @SportsCenter   3-pointer is overturned. Hawks defeat Wizards, 94-91 and advance to Eastern Conference finals. View on Twitter Ariana Grande @ArianaGrande   thank you paris for two amazing nights and for an amazing start to this second legggg. i love y'all so much. je t'aime paris!! xoxo View on Twitter Customize your email Did you know you could pick how often you receive this email? You can choose to receive it daily or opt in to receive it weekly. More options Email settings | Opt-out |  Help Twitter, Inc. 1355 Market Street, Suite 900 San Francisco, CA 94103