Final answer:
The Framers of the Constitution wanted the terms of senators to overlap to ensure continuity and stability within the Senate, preventing abrupt policy shifts and maintaining institutional knowledge.
Step-by-step explanation:
The framers of the Constitution designed the Senate to be a continuous body, with only one-third of its members facing reelection every two years.
The primary reason for the terms of senators to overlap, as indicated in Section 3 Clause 2, is to ensure continuity and stability within the Senate.
This staggered term system helps maintain institutional knowledge and prevents a complete turnover at any given election, which could lead to abrupt policy shifts and reduced quality of governance.