Former Michigan state Senate Majority Leader Mike Bishop (R) has won the primary to succeed retiring Rep. Mike Rogers (R-Mich.), giving the GOP establishment its preferred candidate to hold Rogers's seat.

The Associated Press has called the race for Bishop, who led Michigan state Rep. Tom McMillin (R) 59 percent to 41 percent with 73 percent of precincts reporting.

The win gives Republicans their best chance to hold the Republican-leaning seat. Some GOP strategists had been concerned that McMillin, a Tea Party candidate who's a close ally of Rep. Justin AmashJustin AmashOvernight Defense: House passes Russia sanctions deal | McCain returns to Senate | Watchdog opens criminal probe into M camo mistake Overnight Cybersecurity: Senate Judiciary reportedly drops Manafort subpoena | Kushner meets with House Intel | House passes Russia sanctions deal | What to watch at 'hacker summer camp' Overnight Finance: House votes to repeal arbitration rule | Yellen, Cohn on Trump's list for Fed chief | House passes Russia sanctions deal | GOP centrists push back on border wall funding MORE (R-Mich.), could hurt their chances this fall in the Republican-leaning district. He'll face Ingham County Treasurer Eric Schertzing (D), who also won his primary.

Bishop will more likely than not be joined in Congress by Michigan state Sen. Joe Moolenaar (R), who won the primary for retiring Rep. Dave Camp's (R-Mich.) seat.

The Associated Press has called the race for Moolenaar, a conservative state senator, who led big-spending businessman and former state party treasurer Paul Mitchell (R) 51 percent to 38 percent with 74 percent of precincts reporting.

Moolenaar was outspent by more than $4 million but had Camp's backing as well as the support of former Sen. Rick Santorum (R-Pa.) and Sen. Mike LeeMike LeeSenate rejects ObamaCare repeal, replacement amendment Trump turns up heat on AG Sessions over recusal GOP senators back Sessions after Trump attacks MORE (R-Utah). He'll begin the election as the favorite this fall against Democrat Jeff Holmes in the Republican-leaning district.

—This post was updated at 12:20 p.m.