Mike Rogers, already the frontrunner in the Republican race for U.S. Senate, jumped to an even larger lead after Donald Trump endorsed him March 11.

The former congressman was leading with 27 percent among Republican primary voters before the Trump endorsement, but that grew to 67% after winning the former president’s backing, according to Mitchell Research and Communications.

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“It’s unbelievable,” pollster Steve Mitchell told MIRS news service. “A 40-percentage point bounce? It shows you how strong it is. I’m surprised it’s that much, but if you look at whom the endorsement is coming from, maybe I shouldn’t be.”

Mitchell added Trump’s influence over the Republican Party is the strongest he’s ever seen, “that includes Ronald Reagan. And I work for Reagan in ’84.”

Rogers’ opponents are trailing badly in Mitchell’s latest survey. Former U.S. Reps. Peter Meijer and Justin Amash were at 5 percent, and Sandy Pensler was at 1 percent. Undecideds decreased from 57 percent to 20 percent after the Trump endorsement.

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“Mike has served his Country during a career loaded up with accolades and wins, from the Army to Congress, and now, hopefully, the U.S. Senate.,” Trump posted on Truth Social March 11, the Washington Times reported.

“Mike will work closely with me to enact our America First Policies. He will tirelessly fight to Secure the Border, Stop Inflation, Grow the Economy, Strengthen our Military / Veteran Support, and Protect and Defend our always under siege Second Amendment,” he said. “Mike Rogers will be a Great and Powerful Senator for Michigan, and has my Complete and Total Endorsement. HE KNOWS HOW TO WIN!”