Republican senator calls Obama 'stupid'

By NBC's Kelly O'Donnell

Iowa's senior senator and prolific Tweeter, Republican Chuck Grassley, sent a harshly worded message Saturday that intentionally slighted the president.

Aides say Grassley personally Tweeted: "Constituents askd why i am not outraged at PresO attack on supreme court independence. Bcause Am ppl r not stupid as this x prof of con law."

While Grassley's Twitter account had been previously hacked, this time the use of the word "stupid" was his own. Aides say, "The Tweet is Sen. Grassley's. He is saying that it doesn't speak well of any constitutional law professor to not understand Marbury v Madison. The people understand the independence of the judiciary. So he thinks most Americans are smarter on the Constitution."

In a second Tweet, Grassley wrote,"Possibility of peace and freedom for Syria gets more remote as PresO plays along w the farce of Kofi Annans negotiatios (sic) there Barack wakeup."

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