Mrs Clinton hopes to make history as the first female US president. If successful she would also keep the White House within the same party (Democratic Party) for a third term. She did not detail specific policy proposals on Saturday. Her aides say that will happen over the next few weeks on issues including the economy, jobs and college affordability.
Other Democratic candidates campaigning for Presidency are:
Martin O'Malley, former governor of Maryland
Bernie Sanders, independent senator from Vermont
Lincoln Chafee, former senator and governor of Rhode Island