Gregory John Markkanen is a member of the Republican Party.
The following table lists all contributions reported by the committee in April.
| Amount | Contributor | Date | Contribution type |
|---|---|---|---|
| $150 | Michigan Association of Theatre Owne | 2019-04-04 | Direct donations |
| $150 | Karoub Associates | 2019-04-30 | Direct donations |
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