By Marco Aquino and Marcelo Rochabrun LIMA (Reuters) -Peruvian opposition lawmakers said on Friday that President Pedro Castillo is trying to dissolve the legislature, as he named a new prime minister after suggesting Congress had fired his previous one despite not holding a vote on the matter. Castillo named Betssy Chavez as new prime minister, a close ally and lawmaker who has previously served as minister of culture. Peru is mired in a long-standing clash between its independent state powers, which deepened on Thursday on Castillo's decision to reshuffle his Cabinet after Congress rejected ...