Original sentence: In European politics, a grouping of nationalist parties constitute the sector often labeled as 'far right'.They have thus far found it difficult to cohere in a continuous Group
Edited sentence: In European politics, a grouping of nationalist parties constitute the sector often labelled as 'far right'.They have found it difficult to cohere in a continuous Group: their distaste for other countries and the European Union make it difficult for them to form and maintain pan-European coalitions, and the distaste of other MEPs for them makes it difficult for them to translate any coalitions into a Group