Boris Johnson has once again refused to discuss a late-night incident at his girlfriend’s home that led to police being called to the property.
In an interview he said it was “simply unfair” to bring his loved ones into the political arena.
“I do not talk about stuff involving my family, my loved ones,” he said.
“And there's a very good reason for that. That is that, if you do, you drag them into things that... in a way that is not fair on them.”
When asked whether his privacy meant more to him than public trust he responded: “Yes I get that, I totally get that.”
He added: “The minute you start talking about your family or your loved ones, you involve them in a debate that is it is simply unfair on them.”
Yesterday the leadership frontrunner was called a “coward” by rival Jeremy Hunt for avoiding the media spotlight.
Mr Johnson has also called for “creative ambiguity” over the £39 billion cost of the UK’s Brexit divorce deal.
He maintained he would be able to get a no-deal Brexit through Parliament if he became Prime Minister.
“I think that MPs on both sides of the House also understand that they will face mortal retribution from the electorate unless we get on and do it,” he said.
“People want to get this thing done. They want to get it done sensibly... and they want to get it done in a way that allows us to move on.”
Meanwhile, Mr Hunt has pledged to spend an extra £15 billion on defence if he wins the leadership contest to combat “new threats to western values”.
“I was the person who secured a historic funding boost for the NHS and as prime minister I'll do the same for defence,” he said.
“Increasing defence spending by 25 per cent over five years will show the world a self-confident country ready to defend its interests and values as we embark on an exciting post-Brexit future.”