Early race counts on election night can sometimes differ sharply from the final outcome. Christine Zhang, our election data reporter, explains the reasons behind red and blue “mirages.”

President Trump had little interest in artificial intelligence until a fateful meeting in Las Vegas two years ago. Now, Mr. Trump sees A.I. as the defining technology of our age. Our White House correspondent Jonathan Swan tracks Trump’s journey to A.I. evangelist.

Our White House and national security correspondent, David Sanger, compares past “forever wars” that President Trump campaigned against with an Iran War that has no clear endgame.

Our politics reporter Reid Epstein explains how the Trump administration is using the Postal Service to intervene in mail-in voting in state elections.

The Republican Party is holding a midterm convention in Dallas this week. But as our White House correspondent, Maggie Haberman explains, despite President Trump’s unpopularity in polls, this event is shaping up to be a rally focusing on his achievements.