Feeling Isaac's wrath

The Rebublican convention has been delayed because of a tropical storm Issac.

It appears the storm has avoided Tampa, but is heading West toward New Orleans — where Hurricane Katrina struck seven years before:

"Republicans were wary of the optics of television coverage split between the revelry and partisanship surrounding Mr. Romney’s nomination and the threat of the storm making landfall in Louisiana or Mississippi seven years to the week after Hurricane Katrina left an American city in ruins," reports the New York Times (read more here).

The governments of Louisiana, Mississippi and Alabama have declared states of emergency.

Meantime, a Haiti government official said the storm has killed 18 people, according to the Associated Press.