Presented by Progress Michigan, Lake Effect is a monthly research newsletter that follows public opinion in Michigan. Each month, Public Policy Polling will survey registered voters across Michigan about their opinions of important issues and public figures in the state. These newsletters will break down the results and provide readers with key takeaways and analysis from the data.

March 2023, Issue 33
February 2023, Issue 32
December 2022, Issue 31
November 2022, Issue 30
October 2022, Issue 29
September 2022, Issue 28
August 2022, Issue 27
July 2022, Issue 26
June 2022, Issue 25
May 2022, Issue 24
April 2022, Issue 23
March 2022, Issue 22
February 2022, Issue 21
January 2022, Issue 20
December 2021, Issue 19
November 2021, Issue 18
October 2021, Issue 17
September 2021, Issue 16
August 2021, Issue 15
July 2021, Issue 14
June 2021, Issue 13
May 2021, Issue 12
April 2021, Issue 11
March 2021, Issue 10
February 2021, Issue 9
November 2020, Issue 8
October 2020, Issue 7
September 2020, Issue 6
August 2020, Issue 5
July 2020, Issue 4
June 2020, Issue 3
May 2020, Issue 2
April 2020, Issue 1