Iran's counterproposal included five areas of nuclear and non-nuclear cooperation, according to the state-run Islamic Republic News Agency.

CNN: Talks over Iran's nuclear program resume in Moscow

Senior administration officials said Obama and Boehner have not spoken since Monday, when the president made a counterproposal to a Republican offer over the weekend.

CNN: STORY HIGHLIGHTS

After three Republicans -- Jeffords, Lincoln Chafee of Rhode Island and Arlen Specter of Pennsylvania voted for the amendment -- Senate Majority Leader Trent Lott, R-Mississippi, changed his vote in favor of the measure, saying he hoped to come back later with a GOP counterproposal.

CNN: Senate deals sharp blow to Bush tax plans