With the Democratic Party’s nomination sewn up and running mate Governor Tim Walz of Minnesota at her side, Vice President Kamala Harris is experiencing a groundswell of support, having raised a record $200 million in campaign donations in less than a week. The daughter of Black and South Asian parents, she would represent a series of firsts for America if she wins. Polls show voters, particularly those in swing states, reacting positively to her candidacy. But one of the big variables through November will be, as always, the US economy.