Shortly after Tony Blair was elected as Leader of the Labour Party in 1994, Campbell left Today to become Blair's press secretary. Not only did he attempt to accrue all government power to himself, he also tried to take it into new areas, setting targets for smoking, obesity, drinking and teenage pregnancy, to give just a few examples. Campbell voted Labour in the 2019 general election, having been part of a failed tactical voting campaign aimed at preventing Johnson from winning a majority. In 2003 and 2004, he wrote a series for The Times newspapers, analysing greatness in sport to answer the question "Who is the greatest sports star of all time?

He was heavily involved in rescuing the club from potential bankruptcy, gaining the support of many high-profile public figures. Bower produces intriguing details about how certain ministers and officials were excluded from crucial meetings. Much of the author’s opprobrium is inevitably focused on Cherie – the Lady Macbeth of Fleet Street lore. Campbell wrote a piece criticising the chairman of Open Britain, Roland Rudd, after Rudd unilaterally decided to sack two key campaign officials on the eve of the 2019 UK general election. As Anthony Seldon, the most painstakingly thorough of his biographers, puts it, "he did not become president of the Oxford Union, nor a leading actor, nor a sportsman, nor a well-known young legal blood, nor a debater".The result, from an author who has previously written mainly about the Conservative party and its leaders, is admirably even-handed and often insightful. Within a week, Nielsen BookScan said that 92,000 copies of A Journey had been sold in the United Kingdom, the best opening week for an autobiography since the company began keeping figures in 1998. In an interview with Mark Kermode on BBC2's The Culture Show, Campbell denied that the two are similar in any relevant way, but admitted to his liberal use of profanities in the workplace. Julian Glover, a columnist in The Guardian, said that "no political memoir has ever been like this: a book written as if in a dream– or a nightmare; a literary out-of-body experience.

Tony Blair and George Bush: Bower tells the story in a relentlessly accusatory tone that leaves no room for subtlety’. And at a stroke, it's clear these great, vocal proselytisers of New Labour have unwittingly written its epitaph. Blair himself is reluctant to talk about his religion and, as Rentoul, one of the earliest biographers, points out, even his best friend at Oxford didn't know of his confirmation.Some families of servicemen and women who were killed in Iraq reacted angrily, with one antiwar commentator dismissing Blair's regrets over the loss of life. If there is one area of the Blair era that remains under-reported it is his life after Downing Street. In December 2017, a musical project he was involved in won the Community Award at the Na Trads traditional Scottish music awards.

Many of the phrases and buzzwords of the 1997 campaign - "one nation", "renewal", "the future not the past", "the many not the few" - came from Gould, whose book The Unfinished Revolution (1998) provide Two communities that had been riven by decades of sectarian conflict agreed to lay aside violence and embrace democratic politics. Their first interview was with Ed Miliband, followed by Rachel Riley, Jamie Carragher, Kelly Holmes and Maro Itoje. In 1982, Campbell moved to the London office of the Daily Mirror, Fleet Street's sole remaining big-circulation supporter of the Labour Party.While Blair praises Brown as a good Chancellor and a committed public servant, he believes Brown's decision to abandon the New Labour policies of the Blair years led to the party's 2010 election defeat. In July 2019, in the week Boris Johnson became prime minister, Campbell penned a 3,500-word open letter to Jeremy Corbyn saying he no longer wished to be re-admitted to the party despite legal advice saying he would win a court case against his expulsion.