At a House Foreign Affairs hearing, Secretary of State Hillary ClintonHillary Diane Rodham ClintonAs Buttigieg rises, Biden is still the target Harris rips Gabbard over Fox appearances during Obama years Steyer, Gabbard and Yang shut out of early minutes of Democratic debate MORE gives an update on relations with Iran, urging that the U.S. will place tougher nuclear sanctions on Iran if talks are unsuccessful.