Donald Trump clashed with Jay Powell during a visit to the Federal Reserve on Thursday in a rare public confrontation between a US president and central bank chief.

Inflation has fallen sharply and as a result Fed officials have signaled they will cut rates by as much as a half-percentage point this year. Yet it has picked up a bit in the last two months and many of those policymakers, including Powell, still want to make sure that tariffs aren’t going to lift inflation much higher before they make a move.

Both wearing hard hats, the Federal Reserve chairman and the US president sparred over cost overruns during a tour of the central bank’s renovation project.