Tom Hunt claimed he had not seen "any evidence" the UK's departure from the EU had damaged our economy.
The pubic spending watchdog said it was "still not clear" when the new arrangements will be up and running.
The plan to deport asylum seekers to Rwanda was first proposed under the former PM.
The former PM was the one who called the EU referendum in the first place.
The European Commission wanted to allow Brits aged 18-to-30 to live, study and work in the EU – as they did pre-Brexit.
One "big mistake" has caused the party to unravel, Lord Stuart Rose said.
Liz Webster also took a jab at partygate, adding: "They're not telling the truth."