What strategy did the framers of the Constitution employ to mitigate the effects of sudden changes in popular opinion on Congress?

The framers of the Constitution established six-year terms for Senators to provide a level of stability and insulation from volatile shifts in public opinion. This design was strategic, as the longer terms allow Senators to focus on more long-term goals and policy-making rather than being overly responsive to immediate public sentiments that could change rapidly. The intent was to create a chamber of Congress that would be less susceptible to the whims of transient political trends and allow for more deliberative governance.

This approach contrasts with the House of Representatives, where members serve two-year terms, thereby making them more accountable to the electorate's current moods and preferences. By allowing Senators to serve for a longer duration, the framers aimed to ensure that there would be experienced lawmakers who could provide continuity and thoughtfulness in legislative matters, ultimately contributing to a more stable government structure.