After Florida moved their primary up, the DNC removed their Delegates, and the DNC then asked that all the Democratic candidates not to campaign in Florida.
All the Democrats agreed ( and signed ) to not even go to Florida and campaign
The same thing was done in Michigan, and all the Democratic candidates agreed to not campaign their as well.
But guess who did not keep her word ? Hillary !
After agreeing to stay out of Florida ( and Michigan ) and then later being the only Democrat to go to those 2 states and campaign, she is now trying to get the DNC to reverse their decision, and count those delegates.