When will the Remoaners get over their sour grapes?
Brexiteer Mr Rees-Mogg, who is supporting Mr Johnson's leadership campaign, blasted the decision to prosecute him.
The European Research Group chairman said: 'It is an attack on free speech and the courts are ill advised to be used as the tools of political activists.'
He added: 'It is trying to use the courts to achieve a political end which, I think, is neither right or proper.
'This is involving the courts in something that is not their area.
'We need courts and politicians to respect each other, and it is an abuse of process, and a troubling one.
'It has been brought by people who are resentful of the referendum result.'
Leadership candidate Matt Hancock said: 'However people voted in the Referendum, we shouldn't have courts judging on political debates. Let's have robust debate to test arguments - and keep courts out of politics.'
Tory Brexiteer David TC Davies said it was 'deeply sinister' that Brexiteers were being dragged to court, adding: 'EU supporters falsely claimed that a Leave vote would collapse the economy. No action (is) being taken against them.'
Boris Johnson fires back at judge's decision to send him to court | Daily Mail Online