Final answer:
Three American politicians of Hispanic descent serving in government positions are Alexandria Ocasio-Cortez, Marco Rubio, and Ted Cruz. They represent a growing participation of Hispanic individuals in government, reflecting increased political engagement and voter representation.
Step-by-step explanation:
Among individuals of Hispanic descent who serve in local or national government positions in the United States, three notable figures include: Alexandria Ocasio-Cortez, a congresswoman representing New York's 14th congressional district; Marco Rubio, a senator from Florida; and Ted Cruz, a senator from Texas. All three have made significant contributions to American politics and are well-known representatives of the Hispanic community in government.
Historically, American politics has seen increasing participation from Hispanic and Latino candidates. Henry Cisneros, for instance, became the mayor of San Antonio, Texas in 1981. Similarly, various cities and states have witnessed the election of Hispanic mayors and governors, reflecting the growing influence of Hispanic voters and the success of voter registration drives advocated by organizations fighting for electoral representation.