A key measure of inflation posted the biggest increase in four months in June as the delayed effects of higher U.S. tariffs began to work their way through the economy, raising questions about whether the Federal Reserve will cut interest rates soon.

The Federal Reserve’s preferred inflation gauge ticked higher last month in a sign that President Donald Trump’s broad-based tariffs are starting to lift prices for many goods.

Rising rents were the main driver of inflation in June. But the price of clothing, appliances and toys also jumped — which likely reflects the effects of import taxes. Clothing prices rose 0.4% while the price of appliances and toys jumped nearly 2%.