Polarization of racial attitudes has accelerated over the last decade. By 2013, when George Zimmerman was acquitted of murder in Florida after killing an unarmed Black teenager, the Republican-Democratic divide had grown to about 40 points: 61 percent of Republicans approved of the verdict in that case, compared with 22 percent of Democrats — a stark difference, but still well short of the nearly 70 percentage-point chasms we are seeing in the most recent high-profile cases.

Dec. 7, 1941. “A date which will live in infamy,” President Franklin D. Roosevelt called it. The attack’s 80th anniversary is this month.

Dobbs v. Jackson Women’s Health Organization, involving Mississippi’s ban on abortion after 15 weeks, is, of course, the most consequential abortion case to reach the Supreme Court in decades. The arguments, as you would expect, featured plenty of intricate legal discussion.

There are two schools of thought on whether he’ll seek the presidency again. Both center on his fragile ego. One holds that he must run because that ego simply can’t absorb the humiliation of losing. The other holds that he can’t run because that ego simply can’t risk the humiliation of losing twice.

Both could help protect the world that our grandchildren will inhabit, by achieving the Paris climate agreement goals of keeping the rise in global warming under 1.5 degrees centigrade and achieving net zero greenhouse gas emissions by 2050.

As part of the Build Back Better Act, congressional lawmakers are considering a measure that would impose price controls on branded prescription medicines. That would cripple the innovation that led to the creation of the COVID-19 vaccines — and prevent even more life-changing treatments and cures from ever reaching patients across Maine.

About four of every five Americans want to keep abortion legal. Roe v. Wade has given anti-abortion politicians the ability to placate “pro-life” voters while not inconveniencing the others. But make one’s daughter, one’s wife or oneself fly from Mobile, Texas, to Seattle, Washington, for a procedure that once was locally available, and there are going to be repercussions at the polls.

“The arc of the moral universe is long, but it bends toward justice,” Dr. Martin Luther King told us four days before he was murdered. He didn’t say it bends steadily or quickly.