President Barack Obama will continue to lobby for a deal to limit Iran's nuclear capabilities in an exclusive interview with CNN's Fareed Zakaria to be aired on Sunday.
Obama has looked to galvanize public opinion in support of the agreement negotiated by Secretary of State John Kerry in a recent push via interviews, policy speeches and Capitol Hill meetings.
Republican lawmakers are expected to pass a resolution disagreeing with the deal, and the White House is hoping to muster enough congressional votes to sustain an eventual Obama veto.