250,000 civil servants are to be balloted on strikes over pay, pensions and working conditions, said the PCS union.
More top news
There's no love lost between Boris Johnson and Theresa May.
Eagle, who was one of 20 members of the shadow cabinet to resign, will formally announce her intention to stand on Thursday.
ITV News visits the rural county in the wake of the EU referendum result and finds increasing frustration with Britain's political leaders.