CNN

Clinton and Obama campaigned together in Florida Monday.

ORLANDO, Florida (CNN) – Hillary Clinton came to Florida, a state she won in the primary but whose delegates she could not fully claim, to urge her supporters to turn out for Barack Obama on Election Day.

“We are 15 days from the finish line and we cannot falter, we cannot stop, we cannot take a single vote for granted,” Clinton said Monday. “I am asking you to work as hard for Barack as you worked for me. If you made phone calls for me, make them for Barack. If you walked streets for me, make them for Barack. If you talked to your friends and neighbors for me, do it again for Barack. We cannot risk four more years of the same failed Republican policies.”

The two former rivals had not appeared together at a public rally since they came together in Unity, New Hampshire shortly after the primary season ended, and before Obama officially became the Democratic nominee. Monday's event marks their first joint appearance of the general election season.

The Obama campaign said Senator Clinton has done countless fundraisers and events on behalf of the Obama-Biden ticket. She and former President Clinton recently campaigned with Senator Joe Biden in Scranton, Pennsylvania – an area where the New York senator has deep family ties.

“Sending the Republicans to clean up the economic mess in Washington is like sending the bull to clean up the china closet. We’re not buying that anymore,” Clinton said Monday, straining her voice to be heard over raucous applause. “Now is the time to close the deal for Barack Obama, and close the book on eight years of failed Republican leadership. We are in an economic crisis born and bred by the failed Republican policies of George Bush and John McCain.”

Obama praised Clinton’s performance in the primary campaign and for her role in “shattering barriers” for women. Several times during the event Obama referred to Clinton, and told the crowd he would work with her to reform the health care system.

Clinton called Orlando and central Florida “the battleground of the battleground” and practically begged the crowd to vote early.

“Friends, this is the mad dash to the finish line. This is the opportunity each of us have to stand up for what we believe is best about America. I hope that each and every one of you will do all you can in the next two weeks because you understand what is at stake in this election," Clinton said.