Complex sentence: In September 2008, following retaliatory measures in support of Bolivia, Chavez expelled the U.S. ambassador Patrick Duddy, labeling him persona non grata after accusing him of aiding a conspiracy against his government--a charge Duddy consequently denied.
Split into simpler sentences: In September 2008, following retaliatory measures in support of Bolivia, Chavez expelled the U.S. ambassador Patrick Duddy. Chavez labeled Duddy persona non grata after accusing him of aiding a conspiracy against his government--a charge Duddy consequently denied.