sentences:  During prosperous years, CTM could argue for benefits of the rank-and-file, such as higher wages, networking to provide jobs for union loyalists, and job security.The principle of no-reelection did not apply to the CTM, so that the party loyalist Velázquez provided decades of continuity even as the presidency changed every six years.The PRI won every presidential election from 1929 to 1982, by well over 70 percent of the vote—margins that were usually obtained by massive electoral frauds.