Five things to watch at the third GOP presidential debate

The third Republican presidential debate will take place in Miami with just five candidates, the smallest field yet. With fewer candidates, there will be less competition for time, potentially allowing one candidate to break out as the main rival to Donald Trump. Nikki Haley has been gaining attention and has a chance to eclipse Ron DeSantis as the top Trump alternative. Foreign policy, particularly the war in Ukraine and the conflict in the Middle East, is expected to be a prominent topic.