Complex sentence: Under U.S. pressure, Quiroga sought to have Morales expelled from Congress, claiming that his inflammatory language caused the deaths of two police officers in Sacaba near Cochabamba, however they were unable to provide any evidence for his culpability.
Split into simpler sentences: Under U.S. pressure, Quiroga sought to have Morales expelled from Congress. He claimed that Morales' inflammatory language had caused the deaths of two police officers in Sacaba near Cochabamba, however was unable to provide any evidence of his culpability.