Jacob Rees-Mogg and his mini-me son Peter hit the campaign trail in Wales on Saturday.
The pair were visiting Crickhowell to show their support for Conservative candidate Chris Davies in the upcoming by-election in Brecon and Radnorshire.
It was called after Mr Davies pleaded guilty and was sentenced after falsifying expenses to fund photographs for the wall of his constituency office.
If anyone other than the Conservatives win it will mean new PM Boris Johnson's majority in the Commons is down to just one.
Mr Rees-Mogg, who was made Commons Leader by the new Prime Minister, came to Wales with his eldest son Peter Theodore Alphege Rees-Mogg by his side.
The pair, who often wear the same clothes, were both dressed in tweed jackets, purple ties and dark trousers.
One onlooker said: "I had to double take - it was like seeing Jacob Rees-Mogg and his 'mini-me' version. Not only did they look the same, but they were dressed the same."
They met with Mr Davies and local Conservative supporters in the quaint town.
It’s not the first time Rees-Mogg’s children have made an appearance while he has been out campaigning.
His visit came after he insisted the only way Tory rebels could block a potential no-deal Brexit on October 31 was to revoke Article 50 and keep the UK in the EU.
He told the Daily Telegraph: "There is no way that Parliament can stop Brexit unless there is a vote of no confidence and there is a new government, or the law is changed, but how will the law be changed?
"All these people who witter on about no deal really don't want to leave the European Union at all.
"It's just code for saying they don't want to leave and they think the referendum is a mistake.
"But they are not daring to put down a motion to revoke Article 50, are they?"
Referring to Tory rebels, Mr Rees Mogg said: "These are the only two ways Parliament could stop no deal - revoking Article 50 or bringing down the Government."
