A top MAGA influencer lost a debate with Elon Musk's Grok chatbot after he demanded it accept that the "2020 election was stolen" on the heels of President Donald Trump's primetime address. The influencer is David J. Freeman, a Texas-based conservative commentator and MAGA advocate who posts on X under the handle Gunther Eagleman.Freeman has built a following of more than 1.5 million users on the platform.In his Thursday night speech, Trump spok…