Federal law enforcement are reportedly continuing to search for a Pennsylvania man who threatened "to put a bullet" in President Trump's head, in addition to making a death threat against a local district attorney in the Commonwealth.

Shawn Christy, 26, is the subject of a "large-scale" search by U.S. marshals, the FBI and the Secret Service after authorities issued an arrest warrant at his home in McAdoo, near Tamaqua -- according to WFMZ-69 News.

Christy recently posted on Facebook that if Northampton County District Attorney John Morganelli (D) "keep[s] it up," the man "promise[s] to put a bullet in your head as as soon as I put one in the head of President Donald J. Trump."

Christy also reportedly pleaded guilty to a charge of making terroristic threats against a tax collection clerk in Bangor -- which lies within Morganelli's county of Northampton. Christy lives in Schuylkill County.

"He is believed to be a clear and present danger to the immediate law enforcement community," U.S. Marshals official Robert Clark said Wednesday, according to the Pittsburgh Tribune-Review.

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Christy's father, Craig, contacted authorities after reading the Facebook posts, according to WFMZ. The father said he was "upset because threats are not the right way to solve" things.

US Marshals are searching for Shawn, 26, Christy of McAdoo. He’s accused of threatening government officials, including @POTUS @WNEP $5,000 reward for info leading to his arrest. pic.twitter.com/Ln0dhsCqln — Jessica Albert (@jessicaWNEP) June 20, 2018

In 2011, a Pennsylvania State Trooper came to Christy's home to ask if he was planning to attend a book signing in Bloomington, Minn. featuring former Alaska Gov. Sarah Palin (R).

Palin had previously obtained a restraining order against Christy, who she said threatened her and said he was buying a plane ticket to Alaska, FoxNews.com reported at the time.

Christy's family alleged harassment against the trooper at the time, FoxNews.com reported.

Marshals are offering a $5,000 reward for information that leads to Christy's arrest. The tip line is 484-358-1974.

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