Donald Trump assured Americans on Monday that only his counter-terrorism strategies can protect them from the “hateful ideology” of radical Islam and keep terrorist groups from infiltrating the West.

Speaking to voters in Youngstown, Ohio, the Republican presidential nominee expanded on his existing package of anti-terror proposals, calling for an “ideological screening test” to evaluate immigrants’ attitudes toward American values and the development of a commission on radical Islam to educate the public on Islamic militant movements and how to prevent vulnerable individuals from becoming radicalized.