The Republicans in Wisconsin are putting fake candidates into the Democratic primaries. Oops, sorry, they are "protest candidates" according to Republican Party of Wisconsin Executive Director Stephan Thompson. The primaries are to replace elected officials who have been recalled. To me, the placing of these "protest candidates" is fraud, and the Republican Party claims voter ID will prevent fraud and protect the "integrity" of elections.
It is bad enough that those who support one party will cross-over to vote in a primary for the "weakest" candidate in the other party, but for a party to choose that "weakest" candidate for the other party is fraud, pure and simple.
See "Wisconsin Republicans name fake Democrats for recall primaries", The Republic, Associated Press, 2012-04-04 and "Attorney: Fake Democrats in Wisconsin committing criminal election fraud", The Raw Story, Eric W. Dolan, 2012-04-05.