At a House Foreign Affairs hearing, Secretary of State Hillary ClintonHillary Diane Rodham ClintonDems flip New York state seat that Republicans have held for nearly four decades Dems win majority in New York Senate, but won't control it Chelsea Clinton hits back at NYT reporter over details in new book MORE gives an update on relations with Iran, urging that the U.S. will place tougher nuclear sanctions on Iran if talks are unsuccessful.