The Conseratives have defeated Labour in the Tees Valley Mayoral election
Conservative Ben Houchen won after a run-off against Labour rival Sue Jeffrey, hailing a "political earthquake".
In his victory speech, the new mayor said: "We are seeing a massive trend towards the Conservatives.
"We have started to turn the Tees Valley blue."
He said the party will target five seats in the General Election - improving on the one it held at the last election, James Wharton's Stockton South.