Sen. Rand Paul all but accused the vice president of celebrating war crimes. JD Vance is just fine with that. The Kentucky Republican ripped Vance over the weekend in a social media fight that could offer a preview of future skirmishes between President Donald Trump’s heir apparent and another Republican with 2028 ambitions. Paul has long been a thorn in the GOP’s side and regularly clashed with Trump, making him a particularly useful foil for Vance and the administration as they seek to build support for last week’s attack on a boat leaving Venezuela, killing its crew because they were...