Now, why the heck would all these Republicans go Democrat? This is part of "The Plot." Instigated by Rush Limbaugh, the theory is that Hillary Clinton would be easier for Republican fave, John McCain, to beat at election time. By having Republicans voting for Hils in the primary instead of Barack Obama, this will help ensure that McCain will be the victorious one in the White House. Supposedly.
While you're not (technically) allowed to change party affiliations day of the primary -- protocol calls for one to sign a pledge card promising to support that party in the future -- the article reports that "dozens and dozens of Republicans scribbled addendums onto their pledges as new Democrats: 'For one day only.' 'I don't believe in abortion,'" and were rarely challenged by poll workers on their party change.
This certainly throws a twist into why Hillary won Ohio, doesn't it?
Picture of Ohio by Natalie Dee.