With 25 days to go until the United States chooses a new ­President, the race looks as close as it could be.In a nation of 336 million people, the ­election once again looks set to be decided by a few thousand voters in a handful of places. In these final weeks of the ­seemingly interminable campaign, my focus groups with voters in seven crucial swing states will tell us what is on Americans’ minds as they decided who will replace Joe Biden in the White House.Our tour begins in Phoenix, Arizona, where Biden won in 2020 but Trump now has a narrow lead, according to the latest polling. Two major factors help account for this. One is security on the border the state shares with Mexico – more than 8 million migrants have crossed illegally since Biden took office, around four times the number under Trump.The other is that Hispanic voters, who make up around a third of Arizona’s ­population, are increasingly shifting from their traditionally solid support for ­Democrats.  With 25 days to go until the United States chooses a new ­President, the race looks as close as it could be, writes Lord Ashcroft  Democratic presidential nominee, U.S. Vice President Kamala Harris (pictured), speaking at the debate against Republican presidential nominee Donald Trump  Former US President and Republican presidential candidate Donald Trump (pictured)  Lord Ashcroft (pictured) says in a nation of 336 million people, the ­ election once again looks set to be decided by a few thousand voters in a handful of placesLargely working class, many of these voters warmed to Trump during his presidency and have been hit hardest by inflation in the post-Covid Biden years. And those who have migrated legally to the US often strongly support a firmer stance against those who simply walk across the border.Some Hispanic voters, especially men, told us that having backed Biden four years ago or stayed at home, they were switching their support. ‘I would say circumstances have changed and it’s time for Trump again,’ one man told us.Higher prices, a more dangerous world requiring stronger leadership at home, and the aim to cut energy costs by boosting domestic production – ‘drill baby, drill’ as his mantra has it – all had their appeal. So did Trump’s plan to scrap tax on overtime pay, which he announced up the road in Tucson last month – ‘that really caught my attention’, a hard-pressed manual worker declared.One aspect of the campaign, which could cut both ways, is Americans’ familiarity with the former President.  Actress Julia Roberts shows her support for US Vice President Kamala Harris at Atlanta Pride Supporters cheer for US Vice President and Democratic presidential candidate Kamala Harris  Harris speaks during a campaign event at the Dort Financial Center in Flint, Michigan Former US President and Republican presidential candidate Donald Trump greets  Pennsylvania Senate candidate Dave McCormick (right) A man wears a t-shirt with a picture of former US president Ronald Reagan wearing a Trump hat Trump speaks behind bulletproof glass during a campaign rally at the Dodge County airport In the 2016 campaign, after each new Trumpian outrage, his opponents would think surely now people would see what kind of person he was (never grasping that they could see it all too clearly, but were going to vote for him because other things mattered more or because they liked the unfiltered, unvarnished nature of what he was saying).Elements of this mindset still exist. A new book from Bob Woodward, the ­veteran Washington reporter who uncovered the Watergate scandal that brought down Nixon, claims that Trump has spoken to Vladimir Putin some seven times since his election defeat, and even sent the Russian leader a private supply of Covid tests.The Trump campaign denies the ­allegations, to put it mildly: ‘None of these made-up stories by Bob Woodward are true and are the work of a truly demented and deranged man’, his spokesman said. But Trump’s backers like the idea that he can talk to world leaders – friendly or otherwise – and use his relationships to America’s advantage. Second Gentleman Doug Emhoff, the husband of US Vice President Kamala Harris, speaks at Atlanta Pride Second Gentleman Doug Emhoff, the husband of US Vice President Kamala Harris, speaks at the Atlanta Pride kickoff event Trump supporters line up for a rally with the Republican presidential nominee  Trump t-shirts on sale during a rally with Republican presidential nominee, Donald Trump  Donald Trump (pictured) speaks at a campaign rally at Santander Arena in Reading ‘Eventually, unless you’re planning on them all killing each other, you’re going to have to talk and figure out a way to stop the war,’ said one. ‘He might be greasing the skids – ‘if I do get into office, is there something I can do here?’ Nobody wants to talk to Biden and Harris, there’s just no fear. Trump likes to keep other world ­leaders guessing.’After the assassination attempt against Trump in July, many on both sides thought the election was all but settled in his favour to the extent that some ­Democrats in our groups told us they wondered if it had all been ‘engineered’.My first thought was, is this even real? Some people were saying it was like a little blood pack,’ said one. ‘Something felt fishy. I still don’t know what to believe,’ added another. Don’t let anyone tell you that conspiracy theories are the exclusive preserve of the MAGA crowd.But the advent of Kamala Harris has transformed the race. There is huge relief that the choice is no longer between two octogenarian white men, and that trying to stop Trump no longer means voting for someone clearly incapable of governing. Democratic presidential candidate Kamala Harris speaks at the Des Moines Register Political Soapbox during the Iowa State Fair Supporters cheer as US Vice President and Democratic presidential candidate Kamala Harris speaks during a campaign event A woman wearing a ‘Harris for the people’ t-shirt’ cheers for Kamala Harris during a campaign event  Michigan Governor Gretchen Whitmer waves as she arrives to speak at a campaign event for US Vice President and Democratic presidential candidate Kamala Harris US Vice President and 2024 Democratic presidential candidate Kamala Harris waves as she arrives to speak on the fourth day of the Democratic National ConventionHaving had a fairly low profile as Vice President, Harris has had only a few weeks to introduce herself to the country as the Democrat nominee, and many feel they still don’t know her very well.Some find this concerning. Touting a record as a tough prosecutor in California, she developed a reputation as a liberal in the Senate and now positions herself as a moderate. Some wonder which is the real Kamala. Does she signal a new progressive start or, as one voter put it to us, ‘a new face of the same old’? There is also frustration at what they see as a lack of policy detail. ‘When I hear her talk, it just makes me think, ‘Why am I not hearing anything?’ complained one exasperated voter.Yet paradoxically, the challenge for Harris in the remaining weeks is not to define herself, but to avoid doing so. Republicans are doing their best to paint her as a woke Lefty. (‘Kamala’s for they/them President Trump is for you’ declares a TV attack ad, citing her past support for taxpayer-funded sex-change operations for prisoners.)  A woman holds an I Voted sticker after casting her ballot on the second day of early voting in the 2024 presidential election A voter walks to cast his ballot on the second day of early voting on October 4 A woman receives an I Voted sticker after casting her ballotEvents, or a rare unguarded moment in the final weeks of a carefully curated campaign, may yet reveal more than she intends.But if she can keep it up until election day, this strategic ambiguity means that moderates who thought Biden was just too old and don’t want a return to the Trump circus can cling to the hope that she represents experience and continuity; younger voters fed up with what they see as the compromises of the Biden years can project onto her their hope for something more radical.’I don’t know what to expect from her,’ one participant put it. ‘I’m only voting for her because Trump is the alternative.’If it works and she wins, whichever side is to be disappointed won’t find out until she’s in the White House. But if she loses, both will be devastated.Lord Ashcroft is a businessman, philanthropist, author and pollster. His research is at lordashcroftpolls.com.