The Blue Wall battle edge is determined by new polls in the Harris-Trump showdown.

According to three new polls released on Wednesday, Vice President Kamala Harris leads former President Trump in three crucial 2024 election battleground states.

A Quinnipiac University survey shows that the Democratic vice president candidate leads the Republican president candidate 51%-45% among likely voters in Pennsylvania, while the Green and Libertarian party candidates have 1% support each.

In Michigan, Harris leads Trump by 5 percentage points, with Stein at 2% and all other third-party candidates receiving less than 1% support.

A recent survey shows that the race for Wisconsin's presidency is tightening, with Harris leading Trump by just one percentage point, while Stein and all other candidates are receiving less than 1% support.

The survey's sampling error is greater than the difference in support between Harris and Trump in Wisconsin.

The three polls were conducted between Sept. 12 and 16, after the first debate between Harris and Trump and before and slightly after Sunday's apparent second assassination attempt against the former president.

The 2020 election between Trump and President Biden was decided by razor-thin margins in Pennsylvania, Michigan, Wisconsin, Georgia, North Carolina, Arizona, and Nevada.

The outcome of the 2024 presidential election is likely to be decided by the results in these seven battleground states.

The "Blue Wall" in the United States comprises three Rust Belt states: Pennsylvania, Michigan, and Wisconsin.

For 25 years, the party consistently won all three states until Trump narrowly captured them in the 2016 election, securing his victory in the White House.

In 2020, Biden won all three states by narrow margins, defeating Trump and returning them to the Democrats' fold.

This summer, the Democratic and Republican presidential candidates, along with their running mates, have made multiple visits to the three key states.

In Pennsylvania, Harris' lead has increased from a three-point advantage in Quinnipiac's August poll to a six-point lead in the latest poll.

In a hypothetical two-way race, Harris leads Trump 51-46% in Pennsylvania, an increase from their August matchup of 50%-47%.

In a hypothetical two-way matchup in Michigan, the former president leads the vice president 51%-46%.

In a hypothetical two-way race in Wisconsin, Trump and Harris are evenly matched, with Harris leading by a single percentage point.

The Quinnipiac poll was one of two released in Wisconsin on Wednesday.

In a recent AARP poll conducted from September 11th to 14th, Harris has 48% support among likely voters in Wisconsin, while Trump has 45% support. Despite this, the vice president's three-point lead over the former president is within the poll's overall sampling error of plus or minus four points.

In addition to the White House contest, all three states also host significant Senate races that are likely to determine whether the Republicans can regain control of the Senate majority.

In Pennsylvania, a Quinnipiac poll shows Democratic Senator Bob Casey leading GOP contender Dave McCormick 52%-43%.

A survey shows that Democratic Senator Tammy Baldwin of Wisconsin has a slight edge over her Republican opponent Eric Hovde, with a 51%-47% advantage.

In the race to succeed retiring Democratic Sen. Debbie Stabenow, Elissa Slotkin holds a slim 51%-46% lead over Mike Rogers, the GOP nominee in Michigan.