Elissa Slotkin, a Michigan Democratic congresswoman and leading U.S. Senate candidate, will not attend President Joe Biden's rally in Detroit on Friday.

Her absence will join that of Michigan Democratic Sen. Gary Peters and Gov. Gretchen Whitmer, who is currently on a book tour. reportThe news came a day after Biden's gaffe-riddled speech at the end of a summit marking NATO's 75th anniversary further fueled concerns that he may not be fit to be president. (RELATED: 'Well done, Joe!': Donald Trump mocks Biden's gaffe during solo press conference)

Slotkin's absence is significant given that she is locked in a tight race against former Michigan Republican congressman Mike Rogers, who is a leading contender for the GOP nomination for U.S. Senate. Cook Political Report Shifted of Race The race flipped from “leaning Democrat” to “close” on Thursday, with Slotkin holding a slim 3.7% lead over Rogers in the Real Clear Polling (RCP) survey. average However, his approval rating remains at just 42%.

President Biden's political viability has been a major focus of American politics since his disastrous defeat in last month's debate. Slotkin's choice not to campaign with the incumbent president could signal a lack of confidence in his ability to continue the campaign. More worrying for Biden, it could signal that she sees him as a hindrance to her Senate run. The choice to distance herself from Biden has already been made by several Senate Democrats in battleground states, NBC reported. report.

New Arrivals Cook Politics: #Misaeng The race has shifted from Democratic leaning to a close one as Senate Democrats try to defy political gravity amid Biden's weak influence.

Incumbent Democrats are leading Biden — for now. Data is still thin. But opening seats will be harder without an established brand. https://t.co/aIyXSrW1z1

— Jessica Taylor (@JessicaTaylor) July 11, 2024

Donald Trump currently holds a slim 0.6% lead over Biden in the state's RCP. averageMany experts consider it a must-win state for Biden to secure a second term in the White House.

Rep. Slotkin's office did not respond to The Daily Caller's request for comment in time.