decided to expel Briceño, the governor of Monagas, a state in the Eastern Llanos with an important lot of oil fields. Briceño is one of the many PSUV honchos who belonged before to the traditional parties. When military caudillo Chávez came to power, he decided to become a "revolutionary" and talk evil about those traditional politicians who had kept Monagas in misery - never mind he was a mayor back then.
The PSUV decided to expel Briceño now because he dared to criticise how the state oil company was dealing with the environmental catastrophe in the Guarapiche River. Briceño was particularly angry at PSUV authorities giving the go-ahead to distribute water from a dam that is still highly contaminated. He rejected specially role Diosdado Cabello played in all that. Cabello, who is now the president of the National Assembly and one of the most powerful men within the military caste, also comes from Monagas and he and his people at the PSUV probably wanted to get rid of Briceño for the next state elections.
I hope the alternative parties just keep a safe distance from all this mess. Briceño is no saint.