拜登在集会上为工会争取支持时，哈里斯成为主角

在匹兹堡的劳动节活动上，拜登总统介绍了副总统卡玛拉·哈里斯，民主党正在争取中西部关键的“蓝色堡垒”州的支持。哈里斯成为了这场活动的中心人物，而非拜登。

Original Title: Biden Plays Second Fiddle to Harris as They Rally for Union Support
Article Content:
The president introduced his No. 2, Kamala Harris, at a Labor Day event in Pittsburgh as the Democrats campaigned in crucial Midwestern “blue wall” states.

Original article: https://www.nytimes.com/2024/09/02/us/politics/harris-walz-michigan-pennsylvania.html