The US presidential candidates campaigned in the key swing state of North Carolina on Saturday, seeking to lock in more votes for the election on Tuesday, November 5. It marked the fourth day in a row that Vice President Kamala Harris and former President Donald Trump visited the same state on the same day, highlighting how votes from a few key states would decide the outcome of the polls. More than 73 million Americans have already cast ballots as of Saturday, according to the Election Lab at the University of Florida.  Thabiso Tema spoke with National Security Law and Foreign Affairs Expert, Johanna Leblanc.