President Joe Biden called out the Proud Boys as one of the greatest threats to America during his town hall in Milwaukee. University of Wisconsin-Milwaukee professor Joel Berkowitz got to ask Biden about white supremacists and other hate groups during that town hall Tuesday night. "While I appreciate efforts being made to bring them to justice, I worry about ongoing threats to our country from Americans who embrace white supremacy and conspiracies that align with it. What can your administration do to address this complex and wide-ranging problem?" Berkowitz asked the president. "I got involved in politics to begin with...