While Dingell says her body and all of her muscles are “greatly objecting to the decision” to give the three-day workout a go, she’s determined to raise money for breast cancer research. Her friend Cassandra Woods, a state director for Sen. Carl LevinCarl Milton LevinSen. Gillibrand, eyeing 2020 bid, rankles some Democrats The Hill's 12:30 Report Congress needs bipartisanship to fully investigate Russian influence MORE (D-Mich.), died from the disease last spring.

Asking for supporters to donate to her fundraising page, Dingell — who’s teaming up with a group of friends for the walk — says she promises “I can entertain you with stories of the ugly reality of this non-fit person participating in this project.”

Photo: Debbie and John Dingell in June.