The interim agreement struck in November was considered a successful first step to prevent a possible conflict over Iran 's nuclear ambitions . President Obama said ` ` now is not the time for new sanctions '' Iran to limit its nuclear program in exchange for sanctions , effective January 20 . He will continue on a broader deal to prevent Iran from developing nuclear weapons . A bipartisan proposal in Congress calls for imposing new conditional sanctions on Iran .
President Obama said ` ` now is not the time for new sanctions '' Iran to limit its nuclear program in exchange for sanctions , effective January 20 . He will continue on a broader deal to prevent Iran from developing nuclear weapons . A bipartisan proposal in Congress calls for imposing new conditional sanctions on Iran .