Mexico's political structure differs from that of the United States because there exists three branches of government. the vice president does not serve under the president. There exists a multi-party electoral system, the president heads the government.
When comparing the political system of Mexico with the United States. Mexican presidents can potentially serve more years than a U.S. president. Mexican presidents can be reelected based on outstanding job performance. Mexican presidents cannot be reelected after serving six years, regardless of job performance. The length of presidency among Mexican and U.S. presidents is identical