Thu May 8, 9:19 PM ET
He did not say Thursday what specifically Venezuela would do.
Bolivia's largest and richest state overwhelmingly backed a May 4 referendum seeking greater autonomy from the leftist government of President Evo Morales. Leaders insist they have no interest in full independence.
Chavez, a close Morales ally, accuses the U.S. of fomenting the state's autonomy movement, a charge U.S. officials deny.
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