Sahra Wagenknecht launches far-left grassroots movement German leftwing politicians launch a cross-party populist movement they pledged would address the concerns of the poor and win back working-class voters who have drifted to the xenophobic far-right. Sahra Wagenknecht, a divisive Socialist leader of the far-left Die Linke party, and other co-founders presented the "Stand Up" alliance a week after extremist mobs in east Germany attacked foreigners and noisily protested against Chancellor Angela Merkel's immigration policies. IMAGES AND SOUNDBITES