Law Professors Rick Pildes, Sam Issacharoff, and Burt Neuborne have filed this amicus brief on their own behalf, making the political competition argument under Article I and the Equal Protection Clause of the Constitution. This should be interesting not only for the Texas case, but also for those of us interested in the academic debate over the use of the competition principle in election law jurisprudence.
Law professor Mitch Berman, who has also written some interesting articles about redistricting co-authored this amicus brief arguing that the Texas redistricting is unconstitutional.