 Complete the following phrase:  Wagners involvement in left-wing politics abruptly ended his welcome in Dresden. Wagner was active among socialist German nationalists there, regularly receiving such guests as the conductor and radical editor August Röckel and the Russian anarchist Mikhail Bakunin. He was also influenced by the ideas of Pierre-Joseph Proudhon and Ludwig Feuerbach. Widespread discontent came to a head in 1849, when the unsuccessful 