FILE - This Mach 27, 2014 file photo shows Senate Foreign Relations Committee Chairman Sen. Robert Menendez, D-N.J., right, listening as the committee's ranking member, Sen. Bob Corker, R-Tenn., ... more 
FILE - This Mach 27, 2014 file photo shows Senate Foreign Relations Committee Chairman Sen. Robert Menendez, D-N.J., right, listening as the committee's ranking member, Sen. Bob Corker, R-Tenn., speaks during a news conference on Capitol Hill in Washington. Reports of multibillion-dollar oil talks between Iran and Russia are emerging as the latest obstacle to a comprehensive pact eliminating the threat of an Iranian nuclear arsenal. The Obama administration is weighing potentially deal-breaking sanctions if a contract is completed. In a letter to the president Monday, Congress’ leading sanctions drafters said the U.S. must re-impose all penalties on Iran suspended under the interim pact if Russia and Iran move forward. “We urge you to put Iran on notice,” said Menendez and Sen. Mark Kirk, R-Ill. (AP Photo/J. Scott Applewhite, File) less 
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Associated Press | Photo By J. Scott Applewhite, File
Tue, Apr 8, 2014 8:51 AM EDT