Venezuelan President Hugo Chavez is getting more hysterical in his condemnation of those who would deny him his "constitutional coup" in a referendum scheduled for early next week.

Chávez's behavior appears increasingly unpredictable, but some political analysts say the bluster may be a tactic designed to generate support for the constitutional changes that Venezuelans will vote on in Sunday's referendum.

Although a few weeks ago the proposals had been expected to receive easy approval, polls released last week showed that the opposition could ultimately prevail in a tight contest.

He's decided that his best tactic to recover the control of his movement is to instill fear in his people that there's a world conspiracy against Venezuela," said Demetrio Boersner, a political analyst and former diplomat. "It's a tactic that uses histrionics as a weapon to unite the people so they vote for him on Sunday."

The government says the rhetoric is no scare tactic, but rather a response to concerns that a destabilization plan is in the works. Officials point to negative press coverage, coupled with the Bush administration's statements questioning the fairness of the vote.