According to reports, Trump has already begun executing his promise, as the cards sent out by the White House carried the traditional message of "Merry Christmas and Happy New Year" instead of "Happy Holidays" - a message that was used when former President Barack Obama was in office.
A more secular mindset also is growing among Americans concerning the holiday, Pew suggests.
A new Pew Research Center survey says there has been a noticeable decline in the percentage of US adults who say they believe the biblical elements of the Christmas story were actual historical events. In comparison, four years ago, 59% of Americans said they celebrated Christmas as a religious holiday, including 51% who saw it as more religious than cultural and 7% who marked the day as both a religious and a cultural holiday. In 2005, 43 percent of Americans said they prefered to hear "Merry Christmas", but today that number is just 32 percent. When this question was first asked over a decade ago, and then again in 2012, roughly equal shares expressed a preference for "merry Christmas" and said it didn't matter.
The specific concept of the "War on Christmas" came from author Peter Brimelow's work: "Alien Nation: Common Sense About America's Immigration Disaster" published in 1995. It's nearly as if the Right made up a fake culture war issue that wasn't reflective of reality... In all the areas Pew asked about - whether Jesus was born to a virgin mother, if wise men brought Jesus gifts, etc. - the numbers were down from a few years ago.
While the celebration of Christmas as a religious holiday is on the downward trend, Pew results show that the number of Americans who mark the holiday, regardless of religion, has remained relatively unchanged. Only those born before 1945, labeled the "Silent Generation", increased their faith in the Nativity story (70 percent, compared to 66 percent in 2014). "Likewise, 68 percent of US adults now say they believe that the wise men were guided by a star and brought gifts for baby Jesus, down from 75 percent".
As some conservative commentators continue to call the public's attention to "the war on the celebration of Christmas in the USA", now comes word that fewer Americans believe that the New Testament account of the birth of Jesus is depicted based on actual events.
During his campaign, Donald Trump complained about how businesses were refusing to wish customers a "Merry Christmas" because the inclusion of "Christ" offends some people.
Only 57 percent of Americans believe in all four, down from 65 percent in 2014.
There was one other result worth mentioning: When it comes to religious displays on public property - like Nativity scenes outside a courthouse - fewer Americans want to see it.
More than a quarter (26 percent) now oppose any religious holiday displays on government sites in the new survey, a 6 percentage point jump from 2014's survey.
Why are we seeing this decline? Neither does this trend trouble most people. When you live in a society surrounded by non-Christians, you don't have some pressing need to push Christian myths and phrases upon everyone else.
"Nine in 10 USA adults say they celebrate the holiday, which is almost identical to the share who said this in 2013", said the survey, whose results were released December 12.
There are those from the religious right who would have you believe there is a war on Christianity in this country. "You know, we're getting near that attractive Christmas season that people don't talk about anymore".