Scott Walker's victory bodes well for the GOP in November

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We'll be talking about Tuesday's Wisconsin recall election for a long time to come.

The results were a historic setback for organized labor, which failed to oust Gov. Scott Walker in a citadel of modern progressivism. And how it must have stung that 38% of union households voted for Mr. Walker, up a point from 2010 when he was first elected.

The election has implications for November. The Badger State now looks more like it did in 2000 and 2004, when Democrats narrowly carried it by margins of 5,708 votes and 11,384 votes, respectively. President Obama's campaign now admits Wisconsin is a tossup. That isn't an encouraging trend in a state he won by 414,818 votes.

The recall contest was expected to be close. A Democratic pollster had the race at three points just a few days out. GOP tracking surveys showed the contest tightening as well. Yet Mr. Walker won by 172,739 votes, up from his 2010 margin of 124,638 votes.

To continue reading Karl Rove's column in The Wall Street Journal, click here.