Question 10.61

31. There is a modified version of Condorcet's method called the weak Condorcet rule: A candidate is among the winners precisely if he or she would defeat or tie every other candidate in a one-on-one contest. Notice that with an odd number of voters, the weak Condorcet rule is identical to Condorcet's method. Use the following ballots to show that the weak Condorcet rule is manipulable: