The confusion surrounding the term has led some scholars to suggest that it should be abandoned by scholarship. In contrast to this view, the political scientists Cas Mudde and Cristóbal Rovira Kaltwasser stated that "while the frustration is understandable, the term "populism" is too central to debates about politics from Europe to the Americas to simply do away with." Similarly, Canovan noted that the term "does have comparatively clear and definite meanings in a number of specialist areas" and that it "provides a pointer, however shaky, to an interesting and largely unexplored area of political and social experience". The political scientists Daniele Albertazzi and Duncan McDonnell thought that "if carefully defined, the term 'populism' can be used profitably to help us understand and explain a wide array of political actors". The political scientist Ben Stanley noted that "although the meaning of the term has proven controversial in the literature, the persistence with which it has recurred suggests the existence at least of an ineliminable core: that is, that it refers to a distinct pattern of ideas.". Political scientist David Art argues that the concept of populism brings together disparate phenomena in an unhelpful manner, and ultimately obscures and legitimizes figures who are more comprehensively defined as nativists and authoritarians.