She is accused of grooming underage girls for the late paedophile Jeffrey Epstein and lying about it.
Boris Johnson will make the appeal to the public ahead of rule changes and reopenings on Saturday.
Shadow chancellor Anneliese Dodds will call for jobs schemes to be extended during local lockdowns.
Measures will ensure learning in England is not "knocked off course", the education secretary says.
Ninety-one sites will close immediately with the loss of around 1,900 jobs.