Sen. Bob Corker (R-Tenn.) speaks outside the White House on Nov. 19  after a meeting with President Obama regarding Iran. (Pablo Martinez Monsivais/AP)

President Obama sought Tuesday to stop senators from considering a new round of sanctions against Iran as high-stakes diplomatic talks are expected to get underway again later this week.

Obama met for two hours at the White House with the leaders of the Senate's national security and banking committees.  Secretary of State John F. Kerry and White House National Security Adviser Susan Rice also attended the meeting.

The talk came one day before diplomats are scheduled to begin meeting again in Geneva over the future of Iran's nuclear program. Recent findings by United Nations officials suggest the country has dramatically slowed work on its atomic energy program since the summer, developments that could add momentum to the talks.