Welsh voters are flocking to the Tories across mining towns which used to be dominated by Labour.
The country voted to leave the EU by 52 per cent last year and many are turning to Theresa May to get the best deal for the country.
Speaking to BBC reporter Carolyn Quinn, voters in the constituency of Gower said that Brexit was their top priority in the election campaign.
Many praised Theresa May as the strong candidate the country needed to take on her EU opponents at the negotiating table.
Welsh voters are flocking to the Tories, across mining towns that used to be dominated by Labour
Corbyn has put off many voters in Wales which has traditionally voted Labour
Gower is the UK's most marginal constituency after the Conservative MP won the seat from Labour in 2015 by the narrowest of margins – just 27 votes.
The former mining town in South Wales used to be a Labour stronghold for more than 100 years – but the political tide is turning under Brexit.
John Francis, a member of Navy, was a life-long Labour voter until Brexit and Theresa May came along.
He told the BBC: "I will go Conservative because of Theresa May – Genghis Khan in Number 10.
"We will need her when the negotiations start and she will give them the shock of their lives.
"When the EU blokes come to the table she will tear them to shreds."
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Theresa May campaigning in Wales where the Tories hope to make gains
Wales voted to leave the EU by 52 per cent last year
I will go Conservative because of Theresa May – Genghis Khan in Number 10
John Francis, a Welsh voter
One local told Quinn: "I will vote Tory because of Brexit really."
Another said: "Everyone I speak to, we are changing to Tories just because of Corbyn and the EU."
Laura McAllister, a professor at Cardiff University, said Gower will likely stay in the hands of the Conservatives.
She warned that Labour risks a cataclysmic wipe-out in Wales – but added that traditional voters may save it from embarrassment.
Mrs McAllister added: "It's not really Tory versus Labour, but Corbyn versus May here – and May wins."