sentences:  Toward the end of his term, the incumbent president in consultation with party leaders, selected the PRI's candidate in the next election in a procedure known as "the tap of the finger" (), which was integral in the continued success of the PRI towards the end of the 20th century.In essence, given the PRI's overwhelming dominance, and its control of the electoral apparatus, the president chose his successor.The PRI's dominance was near-absolute at all other levels as well.