At an evening rally in Lexington, Clinton's husband portrayed her as the underdog who keeps coming back from the brink of defeat.
"They've declared her dead more times than a cat's got lives," the former president told a raucous crowd of about 2,500 supporters.
Since then, Clinton has argued that both states' delegations should be seated at the Democratic convention in August. The DNC rules committee has a May 31 meeting to consider options.
"Once we include Florida and Michigan, neither Senator Obama nor I will have enough delegates to get the nomination, so there is no way that this is going to end anytime soon, because we're going to keep fighting for the nomination," Clinton told voters in Prestonburg, Ky.
To bolster her popular vote argument, Clinton's campaign has concentrated this week on Kentucky, where she's leading in polls, in order to run up her vote there. Last Friday, the New York senator left Oregon, where she trails Obama, to campaign exclusively in Kentucky.
Clinton also has been arguing to superdelegates that she is more tested and experienced and has a better chance of beating McCain.
"So I'm going to make my case and I'm going to make it until we have a nominee, but we're not going to have one today and we're not going to have one tomorrow and we're not going to have one the next day," Clinton said. "And if Kentucky turns out tomorrow, I will be closer to that nomination because of you."