Final answer:
The progressives, populists, and bankers had the strongest influence on writing the Oklahoma constitution.
Step-by-step explanation:
The progressives, populists, and bankers had the strongest influence on writing the Oklahoma constitution.
The progressives aimed to reform politics and government, pushing for measures such as direct primaries and initiative and referendum.
The populists advocated for the rights of farmers and laborers, and the bankers exerted their influence to protect their economic interests.
Learn more about influences on writing the Oklahoma constitution