OLDWICK, N.J.–(BUSINESS WIRE)–A.M. Best has affirmed the Financial Strength Rating (FSR) of A (Excellent) and the Long-Term Issuer Credit Ratings (Long-Term ICR) of “a” of the members of the Donegal Insurance Group (Donegal Group). Concurrently, A.M. Best has affirmed the Long-Term ICR of “bbb” of the publicly traded holding company, Donegal Group Inc. (Delaware) [NASDAQ: DGICA and DGICB]. The outlook of these Credit Ratings (ratings) is stable. (See below for a detailed listing of the member