SCOTUS rancor hits fever pitch

• The fracture's timing is extraordinary since "this is the time of year, traditionally, when the court is putting the finishing touches on its biggest, and these days, most divisive, rulings," Georgetown law professor Stephen Vladeck tells Axios.
• The conservative-majority court still has to decide on landmark cases involving voting rights, birthright citizenship and executive power of the president — all cases that could redefine American life for generations.

Catch up quick: Justices Clarence Thomas, Ketanji Brown Jackson and Sonia Sotomayor have all issued critiques in recent days, with Sotomayor also criticizing fellow Justice Brett Kavanaugh — though she didn't mention him by name.

• Thomas slammed progressivism as an existential threat to America's founding principles in a speech on Wednesday, adding that "cynicism, rejection, hostility and animus" grip America.

Sotomayor and Jackson separately critiqued the court's conservative justices for issuing emergency orders allowing roughly two dozen of President Trump's policies to take effect after lower courts blocked them.

• Sotomayor's remarks on Kavanaugh's upbringing stemmed from his written comments on an immigration case last year, where Kavanaugh argued that racial profiling is inconsequential for legal residents. She later apologized, calling her comments "hurtful."
• Jackson also delivered pointed criticism of her colleagues during a speech at Yale Law School on Monday, saying some justices were issuing "scratch-paper musings" with little explanation, leaving lower courts to interpret them.

Worth noting: Jackson and Kavanaugh already butted heads earlier this year with an exceptional sparring match at a legal lecture.

Between the lines: While mud-slinging has become normalized in Congress and the White House, the judiciary has traditionally kept its composure and its disagreements behind closed doors.

• Vladeck tells Axios that the justice's public comments could indicate a fight unfolding inside the court over a case, and that the remarks — especially from Sotomayor and Jackson — likely stem from frustration about some of the court's case conclusions, alongside the Trump administration's repeated use of the emergency docket.
• "It is not the first time that we've had this peek behind the curtain, but it certainly does seem to suggest that things behind the curtain aren't going very well," he said.

The bottom line: While it's not unheard of for the justices to raise public concerns about court decisions, the number of them from multiple justices in such a short period of time is "something we should all pay attention to," Vladeck said.

Go deeper: Supreme Court ideology continues to lean conservative, new data shows