Court-bashing is nothing new. As far back as the 1800s, New Hampshire’s legislature disbanded the state’s Supreme Court five times, said Bill Raftery, a senior analyst at the National Center for State Courts in Williamsburg, Va., who has tracked legislation affecting the judicial system for years.

But political attempts to reshape or constrain state courts have risen sharply in the last 10 years, Mr. Raftery said, propelled by polarization and a fading of the civics-book notion of governmental checks and balances. That became especially true, he said, during the Great Recession that began in 2007, when legislators slashed spending for state judicial systems in the name of balancing budgets — but also, sometimes, in the cause of punishing courts for rulings they disliked.


Joe Scarnati, the president of the State Senate, said he might file ethics complaints against two Democratic justices who expressed opinions on gerrymandering before the…

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