The 2024 primary season in the United States begins with Donald Trump significantly outpacing his Republican rivals in key popularity indicators. Meanwhile, Joe Biden’s job approval rating has fallen to its lowest level for any president in the last 15 years, according to ABC News. According to a national poll conducted in Iowa, Trump is particularly highly regarded by Republicans and Republican independents on three measures: best chance of winning in November, strongest leader, and most qualified candidate for the party. Trump also outperforms his Republican opponents, but by a smaller margi…