FILE – In this March 2, 2015 file photo, Sen. Barbara Mikulski, D-Md., the longest-serving woman in the history of Congress, speaks during a news conference in Baltimore. Senate Democrats have rallied the 34 votes they need to keep the Iran nuclear deal alive in Congress, handing President Barack Obama a major foreign policy victory. Mikulski became the crucial 34th vote Wednesday morning, declaring the agreement is the best way to curb Iran’s nuclear ambitions. (AP Photo/Steve Ruark)