What kind of power to govern does the position hold. Is it like the head of the united nations which is much like a bully pulpit and not much more? Sorry don't know much about this.
The powers are set out in Article 18 of the Treaty of Lisbon, which is very brief and so vague it is almost meaningless. Reproduced below in case anyone is interested. The powers are almost entirely open to negotiation.
In reality the powers weilded by Ashton will be relatively modest and most of her actions will scarcely be noticed. It seems pretty clear that she is Brown's fourth choice and even further down the list of the other 26 dinner party guests who would have known little or nothing about her. They feel they can control the frst High Representative. However the Lisbon Treaty is so constructed that powers can be progressively transferred to the role through ratchet clauses. Ashton may not have all that much power but her successors may well have real power within the same role.
Right now we have an unelected senior post with ill-defined powers and ill defined accountability within a system which has been created with a view to increasing those powers over time without increasing the accountability. Even the government of the USSR didn't come up with anything this fiendish.
As with everything the EU does it displays infinite patience. They have realised that there would be problems right now with high profile appointments so they have made them low profile. This will change in a few years' time.
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Article 18
1. The European Council, acting by a qualified majority, with the agreement of the President of the Commission, shall appoint the High Representative of the Union for Foreign Affairs and Security Policy. The European Council may end his term of office by the same procedure.
2. The High Representative shall conduct the Union's common foreign and security policy. He shall contribute by his proposals to the development of that policy, which he shall carry out as mandated by the Council. The same shall apply to the common security and defence policy.
3. The High Representative shall preside over the Foreign Affairs Council.
4. The High Representative shall be one of the Vice-Presidents of the Commission. He shall ensure the consistency of the Union's external action. He shall be responsible within the Commission for responsibilities incumbent on it in external relations and for coordinating other aspects of the Union's external action. In exercising these responsibilities within the Commission, and only for these responsibilities, the High Representative shall be bound by Commission procedures to the extent that this is consistent with paragraphs 2 and 3.