Hillsborough County Sheriff Chad Chronister has withdrawn from consideration to head President-elect Donald Trump‘s Drug Enforcement Administration.

In a statement, Chronister said Tuesday being nominated “the honor of a lifetime” but was stepping down after the “gravity of this very important responsibility set in.”

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“Over the past several days, as the gravity of this very important responsibility set in, I’ve concluded that I must respectfully withdraw from consideration. There is more work to be done for the citizens of Hillsborough County and a lot of initiatives I am committed to fulfilling,” he wrote in a statement. “I sincerely appreciate the nomination, outpouring of support by the American people, and look forward to continuing my service as Sheriff of Hillsborough County.”