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1·The path Obama had to navigate as he built an identity and found friends and allies within the world of Chicago's African American politics was a winding one.

当奥巴马在芝加哥的非裔美国人世界里立足脚跟，确立了朋友和敌人时，他探索的航线是曲折的。

2·The identity of these grey men of politics should be revealed.

应揭露这些不露身份的政界人士的身份。