Elon Musk has been condemned as "a mixture of mad and right-wing extremist" by professor Jens-Christian Wagner, a historian who runs the Buchenwald concentration camp memorial, the largest in Germany. Wagner made the comments during an interview with The Times of London in which he urged the billionaire businessman to "please be quiet with the poison he's spreading." In recent weeks, Musk has endorsed a number of right-wing groups and individuals in Europe, including British anti-Islam campaigner Tommy Robinson and the Alternative for Germany (AfD) party, leaders of which have made "antisemitic, anti-Muslim and anti-democratic statements," according to the anti-Defamation League.