CARACAS, Venezuela - After months of talks, diplomats trying to broker a peaceful end to Venezuela's political troubles have little to show for their efforts — save for a moribund accord to end verbal insults.

The so-called Group of Friends of Venezuela made up of diplomats from six countries was created in January to help the Organization of American States broker a solution to Venezuela's crisis.

But Chavez's government embarrassed OAS Secretary General Cesar Gaviria by backing out of an April 11 deal for a referendum on Chavez's presidency.

It was a blow as well to the efforts of the six Friends — Brazil, Chile, Mexico, Portugal, Spain and the United States.

Government negotiators now say that opposition delegates at the OAS talks don't represent all sectors opposing Chavez and suggest the OAS-mediated talks be replaced by debate in the Chavez-dominated National Assembly.

Lawmakers, they say, are better suited for the task because they were elected by the people, while the delegates at the OAS talks are chosen by political parties.

The six months of talks between Chavez's government and Venezuela's opposition have produced just an agreement in February to end verbal insults and political violence.

And even that pact has been forgotten.

The mudslinging reached a new low after an opposition general strike curbed Venezuelan oil production and cost the economy $6 billion but failed to oust Chavez.

When a protester was slain during an opposition May Day march, Vice President Jose Vicente Rangel blamed the opposition and said that government adversaries were obsessed with "necrophilia."

Interior Minister Gen. Lucas Rincon told cadets at a police academy graduation that opposition leaders were "brain-damaged" because of excessive expectations on fighting crime.

Carlos Ortega, a labor boss granted asylum in Costa Rica after leading the general strike, said Chavez was "not well in the head."

Chavez routinely assails what he calls a "fascist," "terrorist" and "coup-plotting" opposition.

Chavez, a former paratrooper who led a failed 1992 coup attempt, was elected president in 1998 and re-elected to a six-year term in 2000. His opponents accuse him of mismanaging the economy, dividing the country along class lines and becoming increasingly authoritarian.