Sky News has announced it will stop a debate between the two men if they are not ready to take on the next Tory leader
The station hoped to be the first to hold a direct debate between Mr. Johnson and his rival Jeremy Hunt.
But it was said that Mr. Johnson had "rejected his invitation so far," and the event would do so without him.
Following a dispute with his partner Carrie Symonds, Mr. Johnson spent three days reviewing questions about his private life.
The former Secretary of State has refused to comment on the nature of the dispute in Mrs Symonds' London home, which led to the police being called early on Friday morning.
He was also accused of generally avoiding the media audit, particularly with regard to his Brexit policy Leigh, who recorded part of the argument and told the Guardian newspaper, suggested that their actions were "politically motivated".
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Jacob Rees-Mogg, chairman of the European Brewery Research Group, described the couple as "Corbynista curtain sugar". ,
The couple insisted that it was motivated solely by concern for the well-being of Mrs. Symonds, after hearing reports of raised voices and smashing plates and glasses.
Mr. Johnson remains the leader in the competition for Theresa May's succession. By the end of July, 1
Mr. Hunt challenged him to a series of live TV debates about the US The next 10 days.
But Skys scheduled Tuesday debate seems unlikely.
"Jeremy Hunt has agreed to attend, but Boris Johnson has so far declined the invitation," the broadcaster said in a statement.
"We are ready to hold a debate tomorrow evening when both candidates are available." "It said," tomorrow's debate will not take place without both candidates. "
" Just Cynical "
Mr. Johnson has agreed to attend a personal debate on ITV with Mr. Hunt on July 9 after Tory's
The two men also participate in a series of TV Hustings for Tory members across the UK.
Mr. Johnson and Mr. Hunt participated in a five-day debate last week as part of the Leadership Contest The BBC participated, but Mr. Johnson refused to attend a similar event on Channel 4.
In response to the announcement by Sky, a spokesman for the election campaign of Mr. Hunt said, "Anyone who wants to become a prime minister must now join the intense scrutiny associated with the job, and everything else is deeply disrespectful to our members.
"It's just cynical and complacent to try to settle in Deb hide and shorten the time to return the absentee ballot. Boris Johnson must stop sneaking through the back door at number 10 and clean up his government program. "