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Brody Mullins reports on the presidential race.

The fight between Sens. Barack Obama and Hillary Clinton for the Democratic presidential nomination could drag on for months, but one of the largest Democratic interest groups plans to shift attention to defeating Sen. John McCain in the general election. The AFL-CIO, the nation’s largest labor union organization, will announce plans Wednesday for a $53 million effort to elect a Democrat to the White House.


John McCain greets employees at Savvis Inc. during a campaign stop in St. Louis, Mo., Tuesday. (Associated Press)



Though union membership is down nationwide, the union share of the electorate is growing and is particularly strong on battleground states such as Ohio, where the last few presidential election have been decided.



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