Story highlights The choir member said it was a "hugely moral issue"

A Rockette previously posted that she did not want to perform at the event

(CNN) Another member of a group selected to perform at Donald Trump's inauguration is protesting.

Jan Chamberlin, a member of the Mormon Tabernacle Choir, is quitting the group and saying that she could never sing for Trump.

She sent a resignation letter to the choir president this week.

"I've tried to tell myself that it will be all right and that I can continue in good conscience before God and man," Chamberlin wrote in a Facebook post. "I only know I could never 'throw roses to Hitler.' And I certainly could never sing for him."

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