A week away from officially securing the Democratic Party’s nomination for the US election this year, Vice President Kamala Harris is maintaining an energised race that has her Republican rival worried.

Former President Donald Trump has not yet managed to design a message to counteract the advance of Harris, who, moreover, was able to match the numbers in the polls and even pass her in those states that make up the so-called Blue Wall (Michigan, Wisconsin and Pennsylvania).

Trump’s campaign also came up against a vice-presidential candidate for the Democratic ticket, the governor of Minnesota, Tim Walz, who, as some observers suggest, is a good squire and his credentials, with results when he was a congressman and now in his state, overshadow the first-time senator JD Vance, the former president’s running mate.

This week Harris said she will unveil her economic agenda, which will focus on inflation, on «what we need to do to reduce costs and also strengthen the economy».

The vice president and Walz have held rallies with record attendance and reported donations in the millions ($310 million in July in less than seven days), while her opponent has failed to build a narrative that appeals to the undecided in key swing states, with less than three months to go to the polls.

Harris participated the day before in San Francisco, in her native California, in an event with supporters boosting her political career, where she raised some $12 million.

«We have to knock on doors, we have to register people to vote, we have to get people to the polls. And every day counts,» she stressed to an audience of 700 people, including leading party figures, to whom she warned «we are going to win, but let’s not take anything for granted».

In addition to the meteoric election tour that began in Pennsylvania and moved through Michigan, Wisconsin, Nevada, Arizona and North Carolina, the Harris-Walz pairing won the endorsement of the political committee of the League of United Latin American Citizens (Lulac).

Founded in 1929, Lulac is the oldest Hispanic organisation in the United States, and this is the first public endorsement of a party’s presidential standard bearer in its nearly century-long existence.

For his part, President Joe Biden announced on CBS that he will participate in campaign events in states that could hold the keys to the White House in 2024.

While Vance appeared in an interview with ABC, in which he called for «stopping the bleeding», referring to the mass deportations Trump promised to return to the executive mansion and suggested «let’s start with a million».

The Ohio senator reiterated his past comments on women and childless families and noted that he and Trump are «extremely confident» in their chances of winning the November 5 election.

When Harris entered the campaign, Trump claimed he would beat her «easier than Biden».