Antonia Hylton explains: Back when Donald Trump was newer to presidential politics, he would often frame himself as the foremost authority on…pretty much everything. For more context and news coverage of the most important stories of our day click here: https://www.msnbc.com/ » Subscribe to MSNBC: https://www.youtube.com/msnbc » Subscribe to MSNBC on TikTok https://www.tiktok.com/@msnbc » Subscribe…