Politicians who aren't particularly fond of journalists: from Craxi to Renzi

The symbiosis of Italian journalism and politics is unmissable. Hence, for example, former PM Bettino Craxi's famed impatience towards reporters and current PM Matteo Renzi's notorious "speed" in extricating himself from questions and requests for clarification. The relationship between media and power thrives on different levels of conflict, but what if this relationship becomes irreparably compromised? How can  the necessary credibility on both sides be regained?