Lesson learned again -- never count out a Clinton.

If you watched Hillary Clinton's victory speech from Columbus, you know that she's marching on to Pennsylvania and maybe beyond in this historic campaign with Barack Obama.

Clinton said the voices of other voters, like those in Pennsylvania, should be heard.

"Ohio has written the new chapter in this campaign, and we're just getting started,'' she told a cheering crowd during her televised speech.

"You know what they say. As Ohio goes, so goes the nation. Well this nation's coming back and so is this campaign,'' she said.

Who would have thought that when Pennsylvania did nothing with its late primary date that it would actually mean something?

You have until March 24 to register to vote.

-- John Guerriero