Which diagram best explains a cause-and-effect relationship that has shaped
U.S. politics?
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Answer: The persistence of the two-party system have contributed to long-established party loyalties is the diagram that best explains a cause and effect relationship that has shaped U.S. Politics.
Explanation: The persistence of the two-party system have contributed to long-established party loyalties is the diagram that best explains a cause and effect relationship that has shaped U.S. Politics.