In 2012, U.S. President Barack Obama defeated Republican challenger Mitt Romney to win a second term. Federal finance reports showed campaign expenditures broke the $2 billion mark, making the election the most expensive in U.S. history at the time.

Vice President Kamala Harris and former President Donald Trump spent the last weeks of their campaigns reinforcing their political messages and appealing to undecided voters. Democratic strategist Chuck Rocha and Republican strategist Matt Gorman join CBS News with more on the final stage of the 2024 presidential race.