"Showdown in Iowa: GOP Debate Decides Trump's Challenger"

The final GOP debate before the Iowa caucuses will feature a one-on-one showdown between Nikki Haley and Ron DeSantis, with Donald Trump absent. The debate will be a crucial opportunity for the candidates to pitch themselves and make their case against each other and Trump. The key question is whether Haley and DeSantis will focus on challenging Trump or battle for a distant second place in Iowa. Both candidates have sharpened their attacks on Trump in recent weeks, and the debate could offer insight into their post-Trump political futures.