Polls show that Democrats’ chances of winning the White House this fall have increased dramatically since Joe Biden dropped out of the race and Kamala Harris became the party’s nominee.

Statistically speaking, the swing states are tied, with Donald Trump leading the Republican list. This gives some Trump opponents reason to “stay on edge” between now and November, especially because of the so-called “white man boomerang.”

AB Stoddard of The Bulwark writes: “Although she has gained among women, non-whites and young voters, Harris is not doing as well as Biden among seniors. And there may be a small boomerang underway for white men. According to a New York Times poll, white men ages 65 and older voted 6 percentage points higher for Trump after Harris was chosen as the nominee.”

She added: “All this suggests that while Harris has paved a path through some of the Sun Belt states (Arizona, Nevada and Georgia) that was closed to Biden, she will be challenged in the Blue Wall states of Wisconsin, Michigan and Pennsylvania, where voters are older and whiter than in the rest of the country. And the Electoral College decides the election – and favors Trump.”

Harris toured Pennsylvania earlier this month with her running mate Tim Walz and spoke about her rapid rise in the state.

“I consider us the underdogs,” Harris said during a stop in the community of Moon. “We still have a lot of work to do to win the vote of the American people. That’s why we’re taking this bus tour today, and we’re going to continue to travel the country, talk to people, listen to people, and hopefully earn their votes over the next 79 days.”

Southwest Pennsylvania is a key part of a crucial swing state that has long drawn the attention of presidential candidates. The state voted for Trump in 2016 and Biden in 2020. Both Harris and Trump are vying to see who can put Pennsylvania in their column on November 5.

Trump, who is counting on a high turnout among his white, working-class electorate, is not giving up on the region. The districts around Pittsburgh switched from Democrats to Republicans in the most recent presidential election and gave Trump a good chance in his two previous attempts.

The Associated Press contributed to this report.