At a House Foreign Affairs hearing, Secretary of State Hillary ClintonHillary Rodham ClintonDNC hires former Uber exec to improve tech Eric Trump bashes CNN's Acosta over briefing room drama CNN's Kohn, Ben Shapiro in Twitter spat after controversial 'killing spree' Ryan tweet MORE gives an update on relations with Iran, urging that the U.S. will place tougher nuclear sanctions on Iran if talks are unsuccessful.