Covid: PM calls for 'unity' as he agrees to publish data behind new tiers

Boris Johnson has agreed to publish the health, economic and social data behind England's new tier system later, as he seeks to avert a Commons rebellion. MPs will vote on the measures on Tuesday, and numerous Conservative MPs have demanded to see the evidence government is basing its new system on. Writing to a group of around 70 MPs - who are sceptical of the new rules - Mr Johnson called for 'unity and resolve'. Labour is expected to support the PM, but is yet to confirm its stance. If Labour does decide to get behind the new tier system, the government should easily win the vote - even if there is a sizeable revolt among Conservative MPs.