Whitaker : Obama 's appearance at Arizona school brought out racist protesters . The resulting political backlash has triggered rancorous and racially charged clashes . Report : Sign said , `` Impeach the Half-White Muslim ! '' and some sang `` Impeach the Half-White Muslim ! '' Protesters blame Arizona for race tension , but his detractors promulgate it , Matthew C. Whitaker says . Whitaker : Obama protesters were loud , but such racism is ubiquitous , should worry us all .
Whitaker : Obama 's appearance at Arizona school brought out racist protesters . Report : Sign said , `` Impeach the Half-White Muslim ! '' and some sang `` Impeach the Half-White Muslim ! '' Protesters blame Arizona for race tension , but his detractors promulgate it , Matthew C. Whitaker says . Whitaker : Obama protesters were loud , but such racism is ubiquitous , should worry us all .