Congressional efforts for more Iran sanctions have been downgraded to a strongly worded letter (which will probably be vetoed anyways)
Iran sanctions push stalls, U.S. lawmakers mull weaker measure

An attempt to impose new sanctions on Iran over its nuclear program has stalled in the U.S. Congress and lawmakers are discussing whether to introduce a much weaker measure, congressional aides said on Monday.

Members of the Senate and House of Representatives are considering a non-binding resolution that expresses concern about Iran’s nuclear ambitions and calls for negotiators to set strict conditions in talks between Tehran and world powers.