Donald Trump's campaign revealed Sunday that it has fired a campaign adviser after racially charged posts emerged last week on his Facebook page, according to the New York Times.

Sam Nunberg, the recently fired political adviser, is, "no longer associated with the Donald J. Trump for president campaign," Corey Lewandowski, Donald Trump's campaign manager, confirmed on Sunday, CNN reported.

The Facebook posts date back to 2007 and include racial slurs describing Rev. Al Sharpton's daughter, references to President Barack Obama as a "Socialist Marxist Islamo Fascist Nazi Appeaser," and a derogatory nickname for former Arkansas Gov. Mike Huckabee, calling him a "Huckahick," according to the Associated Press.

This is a pivotal time for the Trump campaign as it enters its seventh week, and this isn't the only controversy tainting the weeks ahead. This is also not the first time Nunberg was at the center of a political controversy involving Donald Trump.

Nunberg was fired in 2014 after he set up a satirical profile of Donald Trump with Buzzfeed called "36 Hours on The Fake Campaign Trail with Donald Trump," though he was later rehired. And recently, Michael Cohen, a lawyer for Trump's company, apologized for comments he made about spousal rape.

Nunberg denied ever having written the Facebook posts, claiming, "anything that was posted under my name does not mean I posted it," according to CNN.

His dismissal is effective immediately.