EDIT:
Link to the pollA local consulting firm has put out the first poll for the primary to replace Mike Rogers.
The automated survey of 884 likely 8th District Republican primary voters was conducted on Monday, March 31 and has a margin of error of 3.29%. Full results follow:
8th District..............100.00% (884)
Mike Bishop................22.96% (203)
Joe Hune...................17.65% (156)
Bryan Barnett...............5.66% (50)
Saul Anuzis.................3.51% (31)
Steve Hantler...............1.58% (14)
Undecided..................48.64% (430)
County breakdowns:
Oakland County.............45.02% (398)
Mike Bishop................42.96% (171)
Bryan Barnett..............10.55% (42)
Saul Anuzis.................3.27% (13)
Joe Hune....................1.76% (7)
Steve Hantler...............1.51% (6)
Undecided..................39.95% (159)
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Livingston County..........34.95% (309)
Joe Hune...................44.34% (137)
Mike Bishop.................5.50% (17)
Saul Anuzis.................1.94% (6)
Steve Hantler...............1.94% (6)
Bryan Barnett...............1.29% (4)
Undecided..................44.98% (139)
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Ingham County..............20.02% (177)
Mike Bishop.................8.47% (15)
Saul Anuzis.................6.78% (12)
Joe Hune....................6.78% (12)
Bryan Barnett...............2.26% (4)
Steve Hantler...............1.13% (2)
Undecided..................74.58% (132)
No surprise that Bishop leads in his home county of Oakland, and Hune in Livingston County (although I'm a bit surprised Bishop doesn't do better there and in Ingham County).
Bishop definitely has the name recognition benefit of being former Senate Majority Leader, so this should be an interesting state to watch.