• HENNESSY ARGUMENT - the role of the PM is flexible - individual PM's shape role to their personality e.g. Blair = presidential but May = less so, more traditional(going back to cabinet govt.)
• 'STYLE OVER SUBSTANCE' - no real change, just appear more presidential partly due to media. Same limitations apply, just appear more presidential.
• 'ELASTIC' THEORY - PM's try to stretch the role/their power. But some limitations apply + reign them in with equal force.
• Constitutionally, not head of state, unlike president as that is the queen.
• No right to presidential status - events can quickly destroy reputation - Gordon Brown - economic crash 2008. Can be removed during their term. Election, vote of no confidence.