As Portland prepared for what was likely to be one of the biggest political demonstrations of the summer, which authorities expected would lead to violence, Donald Trump threw into the mix a characteristically explosive tweet.Related: How Portland's liberal…

Photo credit: Photography and Imaging, The National Gallery, LondonFrom Popular MechanicsWhile studying a Leonardo da Vinci painting in 2005, researchers found a hidden painting underneath.Improved technology has now allowed the angelic images to be seen…

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Sen. Kamala Harris at the National Action Network convention in New York in April. (Photo: Kristin Callahan/ACE Pictures/Shutterstock)If you want to understand where Kamala Harris is coming from, listen to her talk about Berkeley, Calif.…