President-elect Donald Trump's disdain for the mainstream media is well known, as is his admiration for InfoWars, the popular propaganda- filled radio show and website hosted by conspiracy theorist Alex Jones.

In an open letter published Nov. 16, and in an essay published Friday in USA Today, Erica Lafferty – daughter of Dawn Lafferty Hochsprung, the principal of Sandy Hook Elementary School in Newtown, who was murdered along with 20 children and five adults in a shooting at the school in 2012 -- called on the president-elect to denounce Jones, who has repeatedly claimed that the shooting was a hoax perpetrated by the government.

"He is the kind of person you’d expect to be confined to the darkest echo chambers of the Internet," Lafferty wrote in USA Today. "Yet, Jones has been bolstered by the very man who has proclaimed he’ll make our country great again: President-elect Donald Trump."

"Even after an election that exposed deep divisions in our country, surely we can all agree on this: The mass shooting at Sandy Hook happened. Twenty-six families, including mine, were torn apart and will never be the same. Any preposterous ideas to the contrary cannot be allowed to seep into our country’s mainstream discourse. They must be swiftly and publicly refuted," she writes. "Surely, the newly elected leader of the free world can see that."

"Deep down, I do not want to believe that the Jones and the trolls who constantly bombard me with hate on Twitter are reflective of conservatives," she continues. "But if mainstream conservatives won’t disavow fringe thinkers such as Alex Jones, how on earth can they claim the moral high ground?"

Lafferty goes on to ask "conservatives and all Americans to join me in telling President-elect Trump this: Alex Jones represents the worst of our country. It’s time to disavow the man who calls my mother’s death a hoax and not appear on his show." She includes a link to an open letter that readers can sign.

When the shooting occurred, Trump expressed his condolences via Twitter and aligned himself with President Obama's remarks on the tragedy:



A horrible day for Newtown, CT and our country yesterday. My condolences to all of the families so tragically affected. — Donald J. Trump (@realDonaldTrump) December 15, 2012

President Obama spoke for me and every American in his remarks in #Newtown Connecticut. — Donald J. Trump (@realDonaldTrump) December 17, 2012