Democratic presidential candidate Hillary Clinton speaks at an International Brotherhood of Electrical Workers training center in Commerce, Calif.
Democratic presidential candidate Hillary Clinton shakes hands with supporters at a rally at Sacramento City College in Sacramento, Calif.
Democratic presidential candidate Hillary Clinton, center, meets with Culinary Union members holding a rally outside of Sunrise Hospital, Thursday, Feb. 18, 2016, in Las Vegas.
Democratic presidential candidate Hillary Rodham Clinton, left, laughs with Nevada State assemblymen Nelson Araujo as they get ice cream in North Las Vegas, Nev. Clinton made a stop for ice cream with her staff and posed for pictures with people.
Democratic presidential candidate Hillary Clinton, left, greets supporters with her husband and former President Bill Clinton at a Nevada Democratic caucus rally in Las Vegas.
Democratic presidential candidate Hillary Clinton defends a soccer goal from a shot by a child at the Las Vegas Indoor Sports Center in Las Vegas.
Balloons drop on Democratic presidential candidate Hillary Clinton during the final day of the Democratic National Convention in Philadelphia.
Democratic presidential candidate Hillary Clinton speaks at a United Food and Commercial Workers International Union hall in Buena Park, Calif.
Carrie Pugh, left, Katrina Mendiola and Mayors Wegmann cry as Hillary Clinton officially becomes the first woman to be the presidential nominee of a major U.S. political party during the second day session of the Democratic National Convention in Philadelphia.
Democratic presidential candidate Hillary Clinton is seen on screens in the media center during the presidential debate between Clinton and Republican presidential candidate Donald Trump at Hofstra University in Hempstead, N.Y.
Republican presidential nominee Donald Trump and Democratic presidential nominee Hillary Clinton speak during the second presidential debate at Washington University in St. Louis.