Responding to the critics of this move, which includes the Communist Party of Venezuela, President Chavez has stated that those which are not behind the measure are part of the (right wing) opposition. It is the usual argument of the government and its supporters that those who do not back Chavez are counter revolutionaries and play in the hands of the right wing opposition or the CIA. This is now extended to those not backing the move for a single party.
Chavez was given extended powers to govern by decree earlier this year, and has proposed an education reform which will teach kids "pensamiento Chavez", the political thought of president Chavez.

An extract from an article in spanish ( http://www.elpais.com/articulo/internacional/Hugo/Chavez/da/rota/coalicion/Gobierno/pide/criticos/vayan/elpepuint/20070319elpepuint_2/Tes):
Hugo Chavez states that the critics to the unification [of the political parties into a single socialist one] are “practically part of the opposition”
The coalition in the Venezuelan government has been rocked by the disagreements on the issue of the formation of a single socialist party. The president of the country, Hugo Chavez, said yesterday, in his weekly television and radio program Alo Presidente, that he considers the dissident parties to be “practically on the side of the opposition”, and he advised the leaders of the organizations Patria Para Todos (PPT), Partido Comunista de Venezuela (PCV) and Partido por la Democracia Social (Podemos) to leave in a friendly way, “without throwing stones that would smash the windows”.
The three parties have expressed different degrees of concern and opposition to become part of the United Socialist Party of Venezuela (PSUV), as was proposed by Chavez after he was reelected in 2006 for another 6 years. Altogether, the three organizations contributed about 1,700,000 votes of the 7,300,000 that Chavez won. Three leaders of Podemos are governors of different Venezuelan states: Didalco Bolívar of Aragua, Ramón Martínez of Sucre and Yelitza Santaella of Delta Amacuro. Also the leader of the PPT, Eduardo Manuit, is the governor of the state of Guárico. The Communist Party does not have any governors, but David Velásquez, a member of this groups is the minister for Popular Participation and Development.
Podemos has 18 seats in the Asamblea Nacional (parliament); PPT has 9 and PCV has got 6 That is. They have 33 members of a parliament of 167, in which no party of the opposition are represented, as nearly all of them withdrew from the elections of 2005 because they suspected the transparency of the process.
Chávez advised the leaders of the three parties that they should leave the coalition quietly. “There are different ways to leave a party when one has been invited to it”-He said-“You can leave quietly, without any one else noticing, or you can leave shaking hands with every body. You can also leave throwing stones and smashing the windows. I would expect these friend to leave quietly or shaking hands, but if they leave throwing stones they should not come back later to propose political agreements”.

Also in english:  http://news.bbc.co.uk/1/hi/world/americas/6465769.stm