(Bloomberg) -- New Hampshire’s primary Tuesday is the stage for a crucial showdown between Donald Trump and Nikki Haley — the last major challenger standing between the former president and the GOP nomination.Most Read from BloombergChina Weighs Stock Market Rescue Package Backed by $278 BillionIndia Tops Hong Kong as World’s Fourth-Largest Stock MarketHong Kong Stocks at 36% Discount Show True Depth of China GloomFlorida Governor DeSantis Drops Out of 2024 Race, Endorses TrumpMorgan Stanley, JP