Ron DeSantis is seen as the most viable challenger to Donald Trump. But after last night's shaky campaign launch, he now faces an uphill battle. He decided to go on Twitter to have a conversation with Elon Musk and declare his presidency for the United States. The result was nothing short of disastrous. Only around half the initial 600,000-person audience stuck around to hear what he had to say. There is no substitute for victory. We must end the culture of losing that has infected the Republican Party in recent years. We need the courage to lead, and we must have the strength to win.