Improbably, on Tuesday he made it through to the next round of voting, winning the support of 37 Conservative members of parliament — up from 19 in the last round. It was the biggest leap forward of Johnson’s remaining rivals.
On the face of it, Stewart’s campaign looked doomed to fail. He was virtually unknown before the contest began, with barely a month’s experience in May’s Cabinet and a low-profile job as a junior prisons minister before that. Pitching himself as the only candidate telling the truth about Brexit, Stewart says that May’s deal with Brussels is the only one any prime minister can realistically secure. He says that candidates claiming they can take the UK out of the EU without a deal are lying — because parliament will not realistically allow them to do it.
He served as a coalition official in the aftermath of the Iraq war, where he worked resolving tribal disputes among other things.
Stewart’s equally unusual campaigning style has been a hit with the public. Over the past few weeks, he has been publishing videos on social media, visiting areas of the country that don’t traditionally vote Conservative. Those videos have gone viral.
He says he is a pragmatist who can heal divisions in British society by listening to the public. He claims he is proud of the fact that both Labour and Liberal Democrat voters say they would vote for him.
And while this hasn’t gone down well with the group of people that actually will select the next prime minister, the broadly hard-Brexit Conservative membership, popularity outside of this base is central to Stewart’s appeal.
In contrast, Stewart believes that with his wider appeal, he can win a majority for the Conservative party. He believes that Johnson’s Brexit promises are nothing short of fantasy and would ultimately result in the UK going back to square one with Brussels, or worse, holding a general election that the Conservatives would lose.
The other remaining candidates all, like Johnson, claim that they can get a new deal from Brussels and talk about no deal as a possibility. If they knock Stewart out this week, his pragmatic, centrist approach will be dead.
And of course, even if he does make the final two, defeating Johnson is an enormous mountain to climb. Johnson currently has more backers than the next three candidates combined.
Still, the main takeaway from this unusual week in British politics is that halfway through the contest to replace Theresa May, there’s no guarantee that Johnson — or another hardline Brexiteer — will get the top job.
As ever with Brexit, everything is fluid.