Boris Johnson: could he still be PM after the Eddie Mair interview?

In what's being widely seen as a disastrous BBC interview, the London mayor failed to deny he had lied to his party leader, admitted that he had 'sandpapered' a quote when in his journalistic career, and conceded that he had humoured a friend who'd asked for a phone number in the knowledge that the friend intended to beat up the owner of it. Do you think he now stands a chance of leading the country one day?