As the ACLU has transformed itself from a nonpartisan protector of civil liberties into one of Donald Trump’s most bitter political foes, it’s been forced to grapple with fundamental questions about its role in American society.

Robert Mueller’s latest indictment details how deeply Russia meddled with U.S. democracy to aid Trump, but the president still refuses to condemn it.

Donald Trump, in agreeing to meet with Russian President Vladimir Putin, seems willing to endorse countries flouting international law.

A historian explains the risks of increased spending and why the benchmark—2 percent of GDP—is flawed.

Donald Trump, Meghan Markle, and America’s enduring obsession with the British royals

Is Trump's nominee, Brett Kavanaugh, the deciding vote to overturn a key ruling in the fight against global warming?

Free-trade proponents accuse Trump of imperiling a decades-old system, but a reckoning was due no matter what.