'Bad cop' Congress weighs tougher sanctions on Iran

With negotiations over Iran’s nuclear program under way in Geneva, Congress is weighing whether to impose stricter economic sanctions that would increase pressure on Tehran to abandon its nuclear ambitions.

Sens. Mark Kirk, R-Ill., and Bob Menendez, D-N.J., the bipartisan force behind the last round of sanctions on Iran, are pressing again to tighten those restrictions. But the Obama administration, hoping to maximize its flexibility in current negotiations with Iran, is lobbying lawmakers to delay action on any new sanctions.