Responding to questions about the cups, the Seattle-based coffee purveyor today touted its "exclusive Christmas Blend Vintage 2015" one of several Christmas-themed products available in its stores.
On its website, Starbucks pointedly said it was introducing the blend on behalf of its 300,000 employees "from diverse ethnic backgrounds who proudly wear our green apron."
Some religious conservatives have expressed anger over the coffee company's holiday season cups, which this year are a minimalist all-red design with no images aside from the company's green and white logo.
Trump piled on yesterday when he suggested boycotting the company at a rally in Springfield, Illinois.
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"Maybe we should boycott Starbucks. I don't know," he said. "Seriously, I don't care."
He said yesterday that: "If I become president, we're all going to be saying, 'Merry Christmas' again. That I can tell you."
In response to questions about Trump's criticism, Starbucks spokeswoman Sanja Gould noted that the company's Christmas blend was available in 23,000 stores in 70 countries starting today.
She also directed reporters to several pages on the company's website listing various Christmas-branded coffee blends, as well as "Ugly Sweater" and frosted snowman cookies.