Puzzle

I thought I’d repeat a puzzle that I first posted five years ago.

Put these in order by moving the fewest names:

Washington, Wilson, Johnson, Johnson, McKinley, Davis, Jackson, Taft, Kennedy

Moving a name to between two other names, before the first name, or after the last name all count as one move. Thus, exchanging #2 and #7 requires two moves (since you’d have to move #2 and then move #7).

Note that “order” need not necessarily mean chronological order.

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