Hume is not the only reporter who sees Newt as driven as much if not more by ego than ideology. Most FOX News panelists have indicated this same opinion in recent discussions.
Public opinion polls I found over the past 3 years put Newts favorabilty rating with voters as among the lowest of any figure on the public stage. Especially women and across socioeconomic class.
20 years of negative MSM press reinforced by $millions in negative campaigning from Romney will create that sort of public opinion polling.