Lawmakers are now putting pressure on a Pennsylvania college over its employment of a Holocaust-denying professor.

As CBN News reported exclusively last week, Lincoln University literature professor Kaukab Siddique has called for the destruction of Israel.

He has also said the Holocaust was "a hoax" and accused Jews of "taking over" America by "devious and immoral means."

"We must stand united to defeat, to destroy, to dismantle Israel. If possible, by peaceful means," Siddique once said. "Perhaps, like Saladin, we will give them enough food and water to travel back to the lands from where they came to occupy other people."

Now, a group of Pennsylvania state lawmakers want him to be held accountable, sending a letter to university president Ivory Nelson calling for an investigation into Siddique's comments.

Siddique has also advocated for two convicted terrorists with ties to al Qaeda. But his denial of the Holocaust, in particular, has him in hot water, despite his tenured status.

The chairman of the Pennsylvania State Board of Education has also sent a letter to Lincoln University urging the school to formally investigate "whether Siddique is qualified to teach in light of his denial of the indisputable historical facts."

The letter also called on the university to publicly repudiate Siddique's statements. Siddique said recently that he couldn't rule out making such statements again.