New poll shows Biden and Kamala at DEAD HEAT in key state that could SWING election

A second poll in 24 hours shows Donald Trump tied with Kamala Harris in one of the critical midwestern swing states that could turn the election.

A Marist College poll released just after midnight Thursday shows Harris ahead of Trump in Wisconsin and Michigan and the rivals statistically tied in Pennsylvania.

Trump won all three so-called 'blue wall' states over Democrat Hillary Clinton in 2016, delivering him an Electoral College victory. 

In 2020, President Joe Biden flipped the three states back to the Democratic column. 

The poll shows Harris leading Trump by five points in Michigan, 52 percent to 47 percent, with a margin of error of plus or minus 3.1 percentage points.

Harris has a small lead in Michigan with independents and larger leads with black voters and female voters. Trump leads in the state with white voters and men. 

In Wisconsin, where Trump and Harris were tied in Wednesday's key poll, Harris has a one-point advantage at 50 percent to 49 percent but well within the margin of error of plus or minus 3.3 percentage points. 

Harris did have a larger lead among Wisconsin independents (51 percent to 47 percent) than she does in Michigan (49 to 47) and even leads Trump among white and male voters. 

In Pennsylvania, however, the two can not be separated, with a 49-49 tie and the margin of error of plus-minus 2.9 percentage points.

Trump leads Harris 49 percent to 45 percent among independent voters, while claiming men and white voters, while Harris leads among female and nonwhite voters. 

A Quinnipiac University poll released earlier Wednesday shows Harris ahead of Trump in Pennsylvania and Michigan while they are tied in Wisconsin. 

Harris now has a six-point lead in Pennsylvania in that poll - 51 percent to 45 percent - with Green Party hopeful Jill Stein and Libertarian Party candidate Chase Oliver garnering 1 percent each. 

The margin of error in Pennsylvania is plus or minus 2.7 percent. 

In Michigan, Harris leads Trump by five points - 50 percent to 45 percent - with Stein receiving 2 percent of the vote. 

Her lead is narrowly outside the plus or minus 3.3 percent margin of error. 

In Wisconsin, Harris leads by 1 point -  48 percent to Trump's 47 percent - with Stein recieving 1 percent of the vote. 

That poll had a plus or minus 3 percent margin of error. 

By narrow margins, voters in the three states say Trump is the better leader on the economy and immigration but Harris is the far-and-away leader on the issue of abortion. 

In Pennsylvania, 57 percent say Harris would do a better job handling the issue of abortion, compared to 38 percent who said Trump. 

In Michigan it's 53 percent for Harris and 42 percent for Trump and in Wisconsin 53 percent also said Harris, while 40 percent said Trump. 

Harris had an edge when asked which candidate was better for 'preserving democracy.' 

She had a tiny lead when Americans in the three states were asked which candidate would better handle a crisis. 

In Pennsylvania, 49 percent said Harris and 47 percent said Trump. 

In Michigan, 51 percent said Harris, 47 percent said Trump and in Wisconsin - where Harris has the smallest lead - 49 percent said Harris and 48 percent said Trump. 

The three midwestern states are among the seven considered to be crucial to the race, alongside, Arizona, Georgia, Nevada and North Carolina.

Biden won six of the seven in 2020 en route to the White House.

If Harris were to lose either Pennsylvania or Wisconsin, she would need to hang on to Arizona, Georgia and Nevada or flip North Carolina to retain the White House for the Democrats. 

Harris will return to Wisconsin to campaign on Friday, while Trump will head to Pennsylvania for a rally Monday night.