Liz Cheney endorsed Democrat Elissa Slotkin. New poll shows her double-digit lead has evaporated completely.

The lead that Rep. Elissa Slotkin (D-Mich.) held over her Republican challenger, Tom Barrett, has now completely evaporated, according to a new poll.

Ironically, the survey showing Slotkin and Barrett in a dead heat was taken one day after Rep. Liz Cheney (R-Wyo.) campaigned for Slotkin.

What does the poll show?

The Mitchell-MIRS poll of likely general election voters shows that Barrett actually leads Slotkin by less than one percentage point, 48.4% to 47.5%.

Independent voters are helping propel Barrett ahead of his Democratic opponent. The survey found that each candidate is receiving 89% of support from voters in their respective parties, but Barrett holds a 3-point advantage — 48% to 45% — over Slotkin among independent voters.

The result suggests Barrett is on the receiving end of a significant final push, because the same poll, conducted just three weeks ago, showed that Slotkin held an 11-point advantage over Barrett.

Steve Mitchell, president of Mitchell Research, said the latest result indicates what is happening nationwide.

[A]s we are seeing nationwide and within Michigan, there seems to be a late last minute surge to Republican candidates. That surge has moved Barrett into a statistical tie and has also moved Tudor Dixon into a tie with Governor Gretchen Whitmer. The momentum in the race would seem to indicate that if Republicans turn out in high numbers next Tuesday, Barrett may win a very close race.

The Cook Political Report agrees that Michigan's 7th Congressional District is a toss-up.

What about Cheney?

The survey was conducted on Nov. 2, one day after Cheney traveled to the Great Lakes State to endorse Slotkin.

The Democratic lawmaker thus became the first Democrat that Cheney has ever endorsed.

"If we want to ensure the safety of our republic, we have to walk away from politics as usual," Cheney said at a campaign event. "We are going to look beyond partisan politics. If the people in our party are not doing the job they need to do, than we're going to vote for the people in the other party, because we are Americans above all else."