One thing thats common with all the candidates is they care more about being PM than Brexit. Once power is grabbed their principles will desert them. Boris in particular took an age to decide which side he was on when the referendum was announced, hardly committed ! Indeed he wrote an article for backing Remain in the Times, before then deciding to back Leave 2 days later!
https://www.standard.co.uk/news/poli...-a3370296.html
No principles any of them, power is everything.