In American politics, there's Donald Trump—and then there's everyone else.No other figure, including the sitting President, comes close to Trump's outsized political influence. This is doubly true in the Republican Party, which Trump has single-handedly redefined with his America First populism. Since 2016, Trump has dominated the party like a colossus, despite endless uni-party attempts to stop him. The fact that he's still standing has bestowed a certain sense of invincibility upon him, which will be nearly impossible for any Republican challenger to overcome.The GOP primary battle has now been joined by Governor Ron DeSantis, who followed Senator Tim Scott,...