AP is now reporting this:

ST. PAUL, Minn. (AP) -- President Bush, Vice President Dick Cheney and California Gov. Arnold Schwarzenegger are all skipping the Republican National Convention.

Bush and Cheney are focusing on Hurricane Gustav, which is rapidly approaching the Gulf Coast. Schwarzenegger is staying home to deal with a standoff with California legislators over the state budget. All three had been scheduled to speak Monday night at the convention.

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Monday is the big day of protests, with some estimates as high as 50,000 coming.