The company's president, Walter Grose, says they are sold out for six months.

该公司总裁沃尔特·格罗斯表示，它们在六个月内就会售罄。

Harris, as the party's presidential nominee, might help with independent voters, says University of Southern California, Political Science, Professor Christian Grose.

哈里斯作为该党的总统候选人，可能会帮助独立选民，南加州大学政治学系克里斯蒂安·格罗斯教授表示。