Final answer:
Mr. Ellsworth of Connecticut likely favored maintaining the clause as it stands due to the Connecticut Compromise, which ensured equal representation for smaller states in the Senate and addressed their concerns about majority rule.
Step-by-step explanation:
The reason Mr. Ellsworth of Connecticut was in favor of leaving the clause as it stands likely stems from his support for the Connecticut Compromise, which sought to balance the interests of both small and large states by providing equal representation in the Senate. This clause, reflecting the Great Compromise, would ensure that smaller states like Connecticut would not be overpowered in the new federal structure by larger states with greater populations. The Great Compromise was crucial in addressing the concerns of smaller states regarding equal representation and the fear of the unchecked power of majority rule.