Las Vegas Gunman Took Elaborate Steps to Hide His Tracks, New Documents Show

F.B.I. search warrants shed new light on the degree to which Stephen Paddock planned the attack and prepared for the aftermath to come.

U.S. to Open Formal Inquiry on Americans Sickened in Cuba

Secretary of State Rex W. Tillerson is opening an investigation into what the government has described as mysterious attacks that sickened or injured 24 Americans in Havana in 2016.

Mueller Is Said to Likely Seek to Interview Trump

White House officials viewed it as a sign the special counsel’s inquiry was nearly over. But it touched off discussions about the perils of the president sitting for an interview.

Republican Senators Raise Possible Charges Against Author of Trump Dossier

The first congressional criminal referral in connection with Russian meddling targeted a former British spy, not anyone accused of conspiracy.

Amid Calls from Trump, F.B.I. Renews Questions Over Clinton Foundation

Career prosecutors shut down the case in 2016 over lack of evidence. The new interest comes as Mr. Trump has taken the highly unusual step of calling for investigations into political rivals.

Obstruction Inquiry Shows Trump’s Struggle to Keep Grip on Russia Investigation

The special counsel’s investigation has uncovered several incidents involving the president that raise questions about whether he obstructed justice.