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Vice-President Pedro Aleixo was not allowed to replace Costa e Silva, so the Chamber of Deputies and the Federal Senate were reopened to elect the a President and Vice-President, under the Instituctional Act 16.
Gustavo Madero Muñoz (born 1955), a great-grandson of Juan Terrazas Cuilty, is a current PAN Senator from Chihuahua and currently is president of the Federal Senate in Mexico City and president of PAN.
Philip D. Lewis (born 1924), Canadian politician who served in the federal Senate, 1978–1999