Biden continues to receive calls to exit the race from Democrats. (AP Photo/Evan Vucci)
The race was already more competitive due to the loss of the Democrats' incumbent advantage and only made more so by former President Trump's performance in the swing state.
The state's Senate primaries will be held on Aug. 6, leaving just months for the general election campaigns.
DEM SENATOR HELPS BLOCK BIDEN JUDICIAL NOMINEE AMID CONTROVERSY OVER TRANSGENDER INMATE
Harper is challenging Slotkin in the primary race. (Willy Sanjuan/Invision/AP)
Republicans also have several choices. Former Rep. Mike Rogers is the frontrunner and enjoys the endorsement of Trump. However, he still has to beat two challengers, businessman Sandy Pensler and former Rep. Justin Amash.
BATTLEGROUND DEM FEELS HEAT AFTER BIDEN'S DEBATE AS PARTY TURMOIL CONTINUES
Rogers was endorsed by Trump. (AP Photo/Paul Sancya)
CLICK HERE TO GET THE FOX NEWS APP
In Cook's rationale for changing the race's rating, analyst Jessica Taylor wrote, "Following Joe Biden’s debate performance two weeks ago, many Democrats’ concerns turned to not whether the president would win reelection — a diminishing prospect — but if he would drag down-ballot Democrats down with him."
A Fox News Poll from April, several months prior to Biden's poor debate showing, showed Trump defeating the president, 49% to 46%. In April 2020, before Biden flipped the swing state, he polled ahead of Trump, 49%-41%.
Get the latest updates from the 2024 campaign trail, exclusive interviews and more at our Fox News Digital election hub.
Julia Johnson is a politics writer for Fox News Digital and Fox Business, leading coverage of the U.S. Senate. She was previously a politics reporter at the Washington Examiner.
Follow Julia's reporting on X at @JuliaaJohnson_ and send tips to Julia.Johnson@fox.com.
Get the latest updates from the 2024 campaign trail, exclusive interviews and more Fox News politics content.
Subscribed
You've successfully subscribed to this newsletter!
https://www.foxnews.com/politics/biden-drags-down-michigan-senate-race-cook-political-report-declares-toss-up