First past the post (FPTP) electoral systems are most prone to gerrymandering.

Question

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FPTP systems elect representatives based on who receives the most votes in a single-member district. This means that gerrymandering, the manipulation of district boundaries to benefit a particular political party or group, can have a significant impact on election outcomes. By redrawing district lines to concentrate opposition voters in a smaller number of districts or by spreading them out among many districts, those in power can attempt to secure a greater number of seats for their party. Other electoral systems, such as proportional representation, are less susceptible to gerrymandering.

First Past the Post (FPTP) Electoral Systems Are Most Prone