The organization, known internally as “Barack Obama 2.0,” is being designed to sustain a grass-roots network of millions that was mobilized last year to elect Obama and now is widely considered the country’s most potent political machine. Organizers and even Republicans say the scope of this permanent campaign structure is unprecedented for a president. People familiar with the plan say Obama’s team would use the network in part to pressure lawmakers — particularly wavering Democrats — to help him pass complex legislation on the economy, healthcare and energy.

The plan could prompt tensions with members of Congress, who are unlikely to welcome the idea of Obama’s political network targeting them from within their own districts. Already, Democratic Party officials on the state level worry that it could become a competing political force that revolves around the president’s ambitions while diminishing the needs of down-ballot Democrats.