Kamala Harris talks about “joy,” but is that being felt by undecided voters?

The outcome of the 2024 presidential election will likely depend on the roughly 3 million undecided voters in seven battleground states. Surveys show these voters are pessimistic about the country's future. Jonathan Swan, a presidential elections reporter for The New York Times, examines how these voters are responding to Vice President Kamala Harris and former President Donald J. Trump.