Update to this story.

WASHINGTON — President Barack Obama, set to unveil a new policy for boosting U.S. tourism, has chosen a fairy-tale setting for the Thursday announcement: Walt Disney World’s Magic Kingdom, with its iconic Cinderella Castle as a backdrop.

And if some Disney magic rubs off on his re-election bid, too, then so be it.

The event, details of which were made public Tuesday, is the first of what is sure to be many election-year visits by the president to Florida. Obama carried the nation’s largest swing state in 2008, but he faces a heavier lift this year in a state where the unemployment rate remains above the national average.