Civil rights groups have called David Bores's talk "hateful" and "potentially unconstitutional."
The Supreme Court just green-lit the president's Islamophobia.
The event has been arranged by Dutch anti-Islam leader Geert Wilders and Flemish nationalist Filip Dewinter.
The Australian Liberty Alliance is based on Wilders' popular Party for Freedom.
Group called Global Rally for Humanity believes Muslims pose a threat to the U.S.
Wilders offered to take Merkel back to the Netherlands with him, provoking chants of "Merkel must go!" from the audience at a demonstration by German anti-Islam movement PEGIDA.
Hating minority groups like Muslims is alien to America’s culture of tolerance.
Anti-Islam group Pegida has been holding weekly rallies since October.
The PM attended the mass rally in Paris to pay tribute to those killed in the attacks by Islamic extremists
Tommy Robinson endorsed German anti-Islam marches and said former EDL members have joined them