Stacey Ellis, a lifelong Democrat from Pennsylvania, should be the kind of voter that US President Joe Biden can count on.

But after four years of rising prices, her support has worn thin – and every time she shops at the supermarket, she is reminded how things have changed for the worse.

Ms Ellis works full-time as a nurse’s assistant and has a second part-time job.

But she needs to economise. She has switched stores, cut out brand-name items like Dove soap and Stroehmann bread, and all but said goodbye to her favourite Chick-fil-A sandwich.

Still, Ms Ellis has sometimes turned to risky payday loans (short-term borrowing with high interest rates) as she grapples with grocery prices that have surged 25% since Mr Biden entered office in January 2021.

“Prior to inflation,” she says, “I didn’t have any debt, I didn’t have any credit cards, never applied for like a payday loan or any of those things. But since inflation, I needed to do all those things….I’ve had to downgrade my life completely.”

The leap in grocery prices has outpaced the historic 20% rise in living costs that followed the pandemic, squeezing households around the country and fuelling widespread economic and political discontent.

“I’m a Democrat,” says Ms Ellis, who lives in the Philadelphia suburb of Norristown. “I love voting for them. But Republicans are speaking volumes right now and Democrats are whispering.”

“I want somebody to help me, help the American people,” she adds. “Joe Biden, where are you?”

For the president, already contending with serious doubts about his age and fitness for another term, the cost-of-living issue presents a major challenge, threatening to dampen turnout among supporters in an election that could be decided, like the last two, by several tens of thousands of votes in a handful key states.

•People shop at Lincoln Market on June 12, 2023 in the Prospect Lefferts Gardens neighborhood in the Brooklyn borough of New York City. Getty Images

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