If you have a busy social schedule this weekend, show your friends some extra gratitude. New research indicates that social connections are a good predictor of a long life.  

On our cover this week, we examine Donald Trump’s blitzkrieg. As he tries to turn the presidency into the dominant branch of government, how far will his campaign go before he is checked—if he is checked? And where will it leave the republic?

And for a diversion, play our new mini crossword. Four answers based on the week’s news, each with a cryptic and a straight clue. Good luck.