Ohio, Iowa, Florida, Pennsylvania: Donald Trump announced no less than four meetings on Wednesday to support Republican candidates in the US midterm elections in the final hours of the campaign.

• Read also: A Republican candidate again accused of having paid a woman to have an abortion

• Read also: Three far-right activists sentenced for trying to kidnap the governor of Michigan

The former president, surrounded by investigations, threw himself headlong into the campaign for this election in which the Americans renew all of the 435 seats in the American House of Representatives and a third of the Senate.

Organized two years after the next presidential election, these elections, scheduled for November 8, become a de facto referendum on the occupant of the White House, Joe Biden.

But this election also acts as a life-size test for the political future of the Republican billionaire, who openly flirts with a candidacy in 2024.

Concretely, the battle for control of Congress is being played out in a handful of key states – the same ones that were already at stake in the 2020 presidential election, and which Donald Trump will visit in late October and early November.

Just hours before the opening of the polls, the ex-businessman will be in the hotly contested state of Ohio, where his foal J. D. Vance, is opposed to the elected Democrat Tim Ryan.

Democratic President Joe Biden alternates between meetings with the working class and meetings with wealthy sympathizers to fill the coffers of his party, which hopes at least to maintain its control over the Senate.