Final answer:
The least important factor for a member of Congress when deciding how to vote on a bill is personal opinion.
Step-by-step explanation:
When deciding how to vote on a bill, the LEAST important factor for a member of Congress is personal opinion. While it is natural for a representative to consider their own beliefs and values, their priority should be representing the interests of their constituents and implementing policies that benefit the community at large. Other important factors that Congress members consider include public opinion, party affiliation, and the potential impact of the bill on the economy, national security, or social issues.
Learn more about Factors influencing a member of Congress's vote on a bill