Declaring that “This election is bigger than any one person” and “the stakes are just too high,” first Congressional district nominee Christina Bohannan on July 11 called for President Joe Biden “to withdraw from this campaign and pass the torch to a new generation of leadership.”

The same day, the Democratic nominee in Iowa’s second Congressional district, Sarah Corkery, said the president should “pass the baton” to Vice President Kamala Harris.

Bohannan and Corkery were the first Iowa Democratic candidates to publicly endorse replacing the party’s presumptive presidential nominee. It’s a risky move that could appeal to independents who overwhelmingly disapprove of Biden’s job performance, but could also alienate the party faithful the challengers need to volunteer for and donate to their campaigns.