COLUMBUS - In 1837, two brothers-in-law living in Ohio — one a candle maker, the other a soap maker — merged their businesses to form what later became the multinational juggernaut Procter & Gamble.

Nearly two centuries later, the company — which makes everything from toothpaste to diapers — could be the canary in the coal mine as the U.S. economy wobbles under the weight of President Donald Trump's sweeping tariff agenda.

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