This failed mutiny left the 49-year-old MP with the proverbial egg on his face as he probably fancied himself as the next PM who would lead the UK into a glorious post-Brexit period where we can keep using three-pin plugs.
However, with the writing-on-the-wall and it being obvious that the Conservatives would rather keep May and belligerently continue with her Brexit deal rather than offer the public another vote, Rees-Mogg has changed his tune.
During an exchange with Mrs May in the Commons, Rees-Mogg backed May and her maligned premiership, as it was the right thing to do at Christmas.
May I congratulate the Prime Minister on winning the confidence of the Conservatives in this House last week and assure her that she, therefore, commands my confidence too.
At Christmas it is wrong to be a dog in the manger, that is where a baby belongs
In a further statement to BBC News he said.
I am a loyal Conservative and the requires me to support the prime minister and I'll do so enthusiastically and this isn't hedging about, she is our leader and I will support her.
This is a stark contrast to what he said just a week ago after she won the confidence vote.
She clearly doesn't have the confidence of the House of Commons and she should make way for someone who does.
She ought to go and see the Queen urgently and resign.
Rees-Mogg's dramatic u-turn was noticed by Peter Stefanovic of CWU who shared the MP's two hypocritical statements to the BBC on Twitter and people had a lot thoughts.
Thanks @PeterStefanovi2 for exposing the breathtaking hypocrisy of Tory right wingers in just 12 seconds https://t.co/0DmpcgkKxo