Speaking Monday in Youngstown, Ohio, Donald Trump delivered a major foreign policy speech.

The Republican nominee for president proposed a values test to keep radical Muslims out of the United States.

“In the Cold War, we had an ideological screening test,” Trump told an energized crowd. “The time is long overdue to develop a new screening test for the threats we face today. I call it extreme vetting. I call it extreme, extreme vetting. Our country has enough problems. We don't need more.”

“[We must] screen out any who have hostile attitudes toward our country or its principles or who believe that Sharia law should supplant American law,” he said. “Those who do not believe in our Constitution, or who support bigotry and hatred, will not be admitted for immigration to our country.”

According to Trump, terrorism is driven by radical Islam, which supports “honor killings” for women accused of shaming their families and the death penalty for gay men. “My administration will speak out against the oppression of women, gays, and people of different beliefs,” the GOP candidate vowed.

A policy adviser for Hillary Clinton's campaign called Trump's proposal smoke and mirrors.

“How can Trump put this forward with a straight face when he opposes marriage equality and selected as his running mate the man who signed an anti-LGBT law in Indiana?” Jake Sullivan said in a statement. “It's a cynical ploy to escape [the] scrutiny of his outrageous proposal to ban an entire religion from our country and no one should fall for it.”