Jennings, a former Buck, notched 15 points with 13 assists, while Monroe added 16 points and six rebounds in helping the Pistons win a second straight.
Rodney Stuckey (17 points), Andre Drummond (12 points, eight rebounds), Kentavious Caldwell-Pope (14 points), Charlie Villanueva (12 points) and Josh Smith (10 points, seven rebounds, four assists) all reached double figures for Detroit.
John Henson led free-falling Milwaukee with 15 points and seven rebounds.
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