Health secretary urges party to take Caerphilly result to heart as Lucy Powell gets to work as deputy leader Health secretary urges party to take Caerphilly result to heart as Lucy Powell gets to work as deputy leader Senior Labour figures including Wes Streeting have said the government must project optimism and delivery after losing a Welsh Senedd byelection amid rising concern about midterm fatigue and a loss of momentum. The health secretary warned that the party must counter a “growing