Andy Harris

Former Vice President Kamala Harris accused the Trump administration of being historically ineffective and unethical. Senator Cory Booker of New Jersey urged Democrats not to be derailed by their internal disagreements. And Gov. Andy Beshear of Kentucky said the party could lure back working-class voters by focusing on kitchen-table issues.

The 2028 presidential shadow primary arrived in the swing state of Michigan on Saturday, with several potential Democratic candidates test-driving their pitches before a crowd of party activists eager to turn the page on President Trump.

The Democrats’ remarks at a Women’s Caucus luncheon hosted by the Michigan Democratic Party are part of a weekend of programming in Detroit that will culminate with the state party’s convention on Sunday. Michigan has been pivotal in recent Democratic presidential primaries and general elections.

A week ago, the three potential candidates — and many more — gathered in New York for a convention that was the first of many Democratic auditions before what is expected to be a wide-open 2028 race. As they travel the country, these Democrats are delivering stump-speech-style messages that often include sharp criticisms of the president and his party.

“We are dealing with the most corrupt, callous and incompetent presidential administration in the history of the United States — period,” Ms. Harris, the 2024 nominee, said at the luncheon Saturday, decrying a war with Iran that “the American people do not want” and that she said had eroded the nation’s global standing.

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