Hillary Rodham Clinton

Hillary Clinton Texas.JPEG-0c209.jpg

Former Secretary of State Hillary Rodham Clinton speaks about her new book "Hard Choices" on Friday, June 20, 2014, in Austin, Texas. (AP Photo/Eric Gay)

6_172014_hillary-clinton8201.jpg

Hillary Rodham Clinton, who is openly considering a 2016 run for the White House, discussed her position on some of the major political issues of the day, including U.S. intervention in Syria, medicinal and legalized marijuana, and gay marriage. (Associated Press)

hillary rahm.jpg

Former Secretary of State Hillary Rodham Clinton laughs with Chicago Mayor Rahm Emanuel in Chicago, during an event to promote her new book. Mrs. Clinton mistakenly referred to Abraham Lincoln as a Senator. (AP Photo/Stacy Thacker)

346c2712d3c4c916560f6a7067008623.jpg

Former Secretary of State Hillary Rodham Clinton laughs with Chicago Mayor Rahm Emanuel after he missed her hand during a high-five attempt, Wednesday, June 11, 2014, in Chicago, during an event promote her new book. (AP Photo/Stacy Thacker)

b05413b1af8fb116560f6a7067007582.jpg

FILE - This May 29, 2014 file photo shows Sarah Palin speaking in New Orleans, La. In an interview, former Secretary of State Hillary Rodham Clinton revealed that shortly after Palin was nominated as the 2008 Republican vice presidential candidate, the Obama campaign proposed that Clinton go on the attack against her. Clinton said she refused. (AP Photo/Bill Haber, File)

AP080418027035.jpg

**FILE** Democratic presidential hopeful, Sen. Hillary Rodham Clinton, D-N.Y., speaks with traveling reporters on her campaign charter plane shortly before take off in Winston-Salem, N.C., Friday, April 18, 2008. At right is traveling press secretary Mo Elleithee. (AP Photo/Charles Dharapak)