Vice President Kamala Harris‘s campaign is pushing out its first ad as part of a $50 million buy, a minute-long spot that reintroduces the candidate but also criticizes her opponent, former President Donald Trump.

“This campaign is about who we fight for,” Harris says, using snippets of her speech from her first rally last week in Milwaukee. “We believe in a future where every person has the opportunity not just to get by but to get ahead. But Donald Trump wants to take our country backward. … We are not going back.”