President Donald Trump likes fast food almost as much as he loves tariffs. During a government shutdown in his first term, he laid on a banquet of burgers and “many, many French fries” for a visiting American-football team. During the 2016 campaign, according to one aide, he would often order two fish burgers and two Big Macs (although he removed the buns).

This article appeared in the Finance & economics section of the print edition under the headline “Bun fight”