JD Vance vs Tim Walz debate tonight: Why polls think this could make or break US elections

​A VP debate is not as significant as the presidential debate which took place this year on September 10 between Kamala Harris and Donald Trump. About 30 per cent of those who watched the debate developed a more positive opinion about Kamala Harris after the debate., This includes 21 per cent of independent voters. For Donald Trump, most respondents said their opinion remained unchanged; it worsened for 14 per cent.