In Indiana, the state legislature has primary responsibility for drawing the lines of both state legislative districts and Congress, subject to gubernatorial veto. For congressional districts, if the legislature cannot agree on a plan by the end of the session in the year that census data is released, a “backup commission” is convened to take over the process: the commission consists of the Senate and House majority leaders, the chairs of the Senate and House apportionment committees, and one gubernatorial appointee.
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