Boris Johnson's job is on the line as he prepares to face a televised grilling by MPs.

The former British Prime Minister has published a 52-page defence of Partygate, arguing he misled Parliament, but assures lockdown rules were followed in good faith.

He'll present his evidence to a cross-party panel of MPs who, despite the Conservative majority, have previously said he misled them.

UK correspondent Gavin Grey told Kate Hawkesby the potential punishments depend on how bad the panel finds the evidence.

He says Johnson could be suspended for more then 10 days, which could trigger a by-election and cost him his seat.

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