Republican presidential candidate Donald Trump called for a boycott of Starbucks in light of the coffee company's decision to remove Christmas symbols from its holiday-themed cups, which some Christians find offensive.

Starbucks caused a stir on Monday when it announced that it has removed all signs of Christmas from their special holiday cups. In the past, their winter-themed cups featured snowflakes, Christmas ornaments and reindeers. This year, however, the company has designed plain red and green cups, which it describes as a "blank canvas" that allows customers to "tell their Christmas stories in their own way," reports CNN.

In response, some Christian leaders, like evangelist Joshua Feuerstein, argued that the company is trying to wipe Christmas out of society while waging a "war on Christmas," he told TODAY.com.

Trump echoed that sentiment while speaking to a large crowd in Chicago on Monday, suggesting that Christians should boycott the coffee giant despite the fact that the Trump Tower in Manhattan includes a Starbucks franchise.

"I have one of the most successful Starbucks, in Trump Tower. Maybe we should boycott Starbucks?" said the billionaire businessman at the Prairie Capital Convention Center in Springfield, Illinois.

"I don't know. Seriously, I don't care. That's the end of that lease, but who cares? If I become president, we're all going to be saying Merry Christmas again, that I can tell you. That I can tell you," he continued, according to CNN.

Some experts note that Trump's comments, which were said on the day before Tuesday's Republican presidential debate, were made to appeal to Christian voters who represent a large part of the Republican base in key states like Iowa and South Carolina.

This wasn't the first time that the reality TV star pledged to fight to keep Christmas ingrained in American culture. At a campaign event back in October he said, "I guarantee if I become president, we're going to be saying 'Merry Christmas' at every store."