JACKSON, Mich.—The entrapment hearing for three former Wolverine Watchmen facing state charges for their alleged roles in planning the kidnapping of Michigan Gov. Gretchen Whitmer began Feb. 23, in what could be a preview of the upcoming federal trial for the plot’s accused ringleaders. Joseph Morrison, Pete Musico, and Paul Bellar have been charged under Michigan law with providing material support to a terrorist plot. Their case is separate from the federal charges against alleged plot ringleaders Adam Fox, Barry Croft, Daniel Harris, and Brandon Caserta. With at least 12 undercover federal informants or agents involved in the group, both sets of defendants claim they were entrapped. Testifying at the Feb. 23 state hearing was FBI agent Henrik Impola. Impola is accused of perjury in a separate matter and won’t testify at the March federal trial. Defense attorneys for Morrison, Musico, and Bellar said they wouldn’t raise the perjury allegations …