Third parties have been successful in all of the following roles EXCEPT:
A supporting a specific issue
B. forming as protest groups
C. impacting election results
D. becoming a dominant party

D. becoming a dominant party

Explanation:

Third parties have been unsuccessful in becoming a dominant party because they often represent an ideology that is considered too radical by the mainstream parties and their constituents. They fail simply because the American political system is designed to support only two major parties. As well as this, 48 of the 50 states employ a winner-takes-all system for electoral votes.

Good luck!!

as general terms,  indian territory,  the indian territories, or  indian country  describe an evolving land area set aside by the  united states government  for the relocation of  native americans  who held  aboriginal title  to their land. in general, the tribes ceded land they occupied in exchange for  land grants  in 1803. the concept of an indian territory was an outcome of the 18th- and 19th-century policy of  indian removal. after the  civil war(1861–1865), the policy of the government was one of  assimilation.

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