ProPublica reminds us how Trump (OK, it's probably too sneaky for him - Miller or others) started this - by "threatening to sue" Texas for its current districts, drawn to fit the Voting Rights Act, as "unconstitutional racial gerrymanders".
The letter decried the congressional map previously passed by the states Republican-led Legislature as unconstitutional racial gerrymanders. It demanded that Gov. Greg Abbott and state Attorney General Ken Paxton respond the same day with a plan to comply. Otherwise, the Justice Department said, it reserved the right to seek legal action against the state.
Despite its adversarial tone, the letter was hardly unwelcome. In fact, it was just the opposite.
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A decision will hinge, in part, on how the courts view an assertion by the Trump administration that the congressional map passed by the Legislature four years ago, and defended by GOP lawyers in court as race-neutral, suddenly must be changed because it paid too much attention to race.
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During a four-week federal court trial in El Paso that ended last month, Texas officials denied practicing racial discrimination. The three judges hearing the case have delayed issuing a decision, citing the special session in Austin.
https://www.propublica.org/article/texas-redistricting-trump-lawsuits-courts
The aim of the Trump regime is not just to gerrymander the upcoming elections; they want a case to their tame Supreme Court, so that it can strike down the remaining parts of the Voting Rights Act, which would then prevent any state from drawing districts to give equal racial representation, forever. And it would allow all Republican states to draw boundaries however they want - meaning they could go wild on the gerrymandering.