evidence: Following President Joe Biden’s poor performance in the June 27 debate, former President Donald Trump holds a 4 percentage point lead over Biden among registered voters: 44% say that if the election were held today, they would vote for Trump; 40% would vote for Biden, while 15% support third-party candidate Robert F. Kennedy Jr. [...] Since April, there has been a modest uptick in the share of voters who say that if given the chance, they would replace both Biden and Trump on the ballot. Currently, 53% favor replacing Biden and Trump with different candidates, up from 49% in April. [...] Currently, 71% of Biden supporters say that if they had the ability to decide the major party candidates for the 2024 election, they would replace both Biden and Trump. Roughly a quarter (23%) say they would keep Biden and replace Trump, while smaller shares would keep Trump and replace Biden (2%) or keep both candidates (3%).