The former president just made a campaign stop in Howell, Michigan, where white supremacists recently held a march and voiced support for Trump, Hitler, Nazis and the KKK.

Donald Trump’s appearance in Howell, Michigan, on Tuesday sparked controversy before he even arrived. That’s because the visit continued his notable tradition of scheduling campaign stops in locations known as hotbeds for racist extremism.

Just last month, a group of white supremacists marched in Howell and expressed their support for Trump and Adolf Hitler. As journalist Jon King wrote for the Michigan Advance, the event evoked memories of Howell’s racist — and in some cases, fairly recent — history of public bigotry and the Ku Klux Klan.