Twitter accounts suspected of having links to Russia were focused on Robert Mueller. But after news broke about the shooting, they quickly changed their focus.
A vast majority of guns used in 19 recent mass shootings were bought legally and with a federal background check.
Around the country, teachers are reflecting on whether they are prepared to take a bullet for their students. “I think about it all the time,” one said.
With imperfect English and tireless posting on Facebook and Twitter, Russian trolls summoned Americans to rallies, praised Donald J. Trump and played on political divisions.
The White House press secretary said that Mr. Trump had spoken to Senator John Cornyn, Republican of Texas, about legislation he helped introduce to revamp background checks.
Some Facebook executives still seem more interested in defending themselves from criticism than owning their mistakes related to the 2016 election.
The charges against 13 Russians have injected a new twist into a debate that has consumed the political universe since the final hours of election night: How did Trump do it?
A surge in spending on the armed forces has opened new avenues for the graft and cronyism that many see as Ukraine’s most dangerous enemy.
A federal trial in Brooklyn is set to explore the issue of so-called collars for dollars. The implications could be far-reaching.
The White House aide who resigned in a domestic abuse scandal that engulfed the White House was known for his ambition at Harvard and on Capitol Hill.