Kamala Harris is getting a worrying sign in the state that she has to win

Working-class voters are moving to the right, which could hurt Vice President Kamala Harris' chances of winning Pennsylvania, according to a new analysis.

According to a report by The Philadelphia InquirerWorking-class voters in Pennsylvania, once a reliable voting bloc for Democrats, have “drifted to the right in recent years.” Pennsylvania is a swing state with 19 Electoral College votes critical to victory in November.

The shift to the right is particularly pronounced in Philadelphia, Pennsylvania's largest city, where President Joe Biden did worse in 2020 in 41 of the city's 66 political districts than Hillary Clinton did in 2016. The Philadelphia Inquirer reported.

The analysis found that in Philadelphia counties where 35 percent more residents live in poverty, the net shift is toward poverty the Republicans from 2016 to 2020 was 47 points. By contrast, voters in counties where fewer than 11 percent of residents live in poverty supported Democrats by 25 points.

In areas where 11 to 16 percent live in poverty, voters tilted 20 percentage points toward Democrats, and in areas where 16 to 24 percent live in poverty, there was a 9 percentage point shift toward Democrats.

The report also shows that Democrats have lost the most ground among working-class Latinos.

Accordingly, working-class Latinos voted for then-President Donald Trump by 75 points in all Philadelphia voting districts in 2020 The Philadelphia Inquirer. In contrast, white working-class voters leaned Republican by 10 points, while black working-class voters leaned Republican by 12 points.

Newsweek emailed the Harris and Trump campaigns seeking comment.

The analysis is a worrying sign for Harris, who currently leads Trump by just 0.8 points in Pennsylvania, according to FiveThirtyEight. And polls show the vice president leading Trump by just a few points among the lowest-income voters.

A survey of 816 registered voters in Pennsylvania conducted by Patriot Polling between September 27 and 29 found Harris with a 5-point lead among voters with incomes of $0 to $50,000. Among voters earning between $50,000 and $100,000, their lead increased to seven points, while Trump had a 12-point lead among voters with salaries above $100,000. The survey had a margin of error of +/- 3 percentage points.

In another poll conducted by AtlasIntel between September 20 and 25, Harris was ahead by 19 points among voters with incomes under $50,000 and 5 points among voters earning between $50,000 and $100,000. Among voters with salaries over $100,000, Trump leads by 17 points. The survey had a margin of error of +/- 3 percentage points.

With 19 Electoral College votes up for grabs, Pennsylvania has historically been a crucial state for winning presidential elections.

Harris needs 44 electoral votes from the battleground states to win this year, while Trump would need 51. If Harris won the 2nd District in Pennsylvania, Michigan, Wisconsin and Nebraska, she would have enough votes to secure victory.

FiveThirtyEight's forecast shows Harris is expected to win in Pennsylvania, Nevada, Michigan and Wisconsin.

However, the polls in the swing states are still close. Some recent Pennsylvania polls show Trump leading by as much as 3 points, while others show Harris leading by as much as 6 points. FiveThirtyEight polling averages show Harris' lead in the state has fallen 0.3 points since Sept. 1, from 1.1 points to 0.8 points.