After a career trying to keep the U.S. Supreme Court above politics, Justice Stephen Breyer¡¯s retirement underscores just how central the court now is to the U.S. political wars.

Breyer¡¯s White House announcement Thursday was timed perfectly to give President Joe Biden a needed chance to change the national conversation and reinforce the court¡¯s beleaguered liberal wing.

It comes amid a seismic Supreme Court shift driven by a Republican agenda. The court now has a 6-3 conservative majority that could be poised to overturn the constitutional right to abortion, abolish the use of race in university admissions and slash the Environmental Protection Agency¡¯s power to combat climate change.