Mrs Brighouse said: “There are serious issues around SEND needs and children’s care.
"There is a real mental health crisis for children at the moment.”
The Labour group leader added she thought there would be a close working relationship with the Labour-run Oxford City Council.
In the past, there have been suggestions of bad blood between the formerly Tory-run county council and Labour-run city council, but Mrs Brighouse contested this.
Liz Brighouse, Pete Sudbury and Liz Leffman, the group leaders of the Oxfordshire Fair Deal Alliance. Picture: Andrew Gant
She said: “I don’t know if there ever has been a strained relationship.