For Federal Reserve Chair Jerome Powell‚ deciding when to cut interest rates is hard enough: Too soon‚ and inflation could rise again. Too late‚ and unemployment might shoot higher. The challenge is doubly difficult this year because he is doing it in the glare of election-year politics. Allies of former President Donald Trump‚ the Republican front-runner‚ have already argued that the central bank is seeking to help President Biden by signaling that cuts...