David M Jackson

USA TODAY

A week after declaring President Obama and Hillary Clinton the virtual "founders" of the Islamic State, Donald Trump is set to deliver a speech Monday on the extremist organization.

"He's going to lay out his vision and his strategy for defeating radical Islamic terrorism," running mate Mike Pence told Fox News Sunday.

Trump, who has said the Obama administration's withdrawal from Iraq gave rise to the Islamic State, is scheduled to address the topic Monday afternoon at Youngstown State University in Ohio.

Sen. Jeff Sessions, R-Ala., a Trump adviser, told ABC's This Week that Trump will claim that de-stabilization in Syria and Libya have fueled growth of the group also known as ISIS. The Republican nominee will also discuss "how we restore credibility with our allies and friends" in the Middle East, Sessions said. "He's going to talk about how you target your enemies and work with your friends," Sessions said. "You don't overreach and destabilize countries like the Obama/Clinton administration has done."

Obama, Clinton, and other Democrats say Trump is already alienating allies with a string of anti-Muslim comments, including a call to temporarily ban Muslims from entering the United States until the terrorism issue is addressed. "We rely on partners in Muslim countries to fight terrorists," Clinton said earlier this summer. "This would make it harder."

Speaking shortly after the terrorist attack in Orlando, Clinton said Trump's words are "a recruiting tool for ISIS to help them increase its ranks of people willing to do what we saw in Orlando."