Clockwise from top left: Ron DeSantis, Nikki Haley, Vivek Ramaswamy, Mike Pence, Tim Scott and Chris Christie. (Alex Wong/Getty Images, Andrew Caballero-Reynolds/AFP via Getty Images, Jose Luis Magana/AP, Anna Moneymaker/Getty Images, Al Drago/Bloomberg via Getty Images, Scott Eisen/Getty Images) Republicans will hold their second 2024 presidential debate on Wednesday evening, though, as with the first gathering, one candidate will be notably absent. Former President Donald Trump, who skipped the first GOP debate in Milwaukee last month, will not join his fellow presidential hopefuls on stage at the Ronald Reagan Presidential Library in Simi Valley, Calif. Instead, Trump plans to hold…