As President Obama prepares to demand another increase in the nation’s nearly $17 trillion debt ceiling later this month, about half of all House Republicans have joined to block him in a way that would keep the nation from defaulting and key programs like Social Security, Medicare and veteran’s benefits flowing.

Backed by 106 co-sponsors and the powerful Republican Study Committee, the measure dubbed the Full Faith and Credit Act is the latest GOP effort to bar an increase in the debt ceiling, which has jumped 30 percent under Obama who has boosted it four times already.