Did President Donald Trump Make A Mistake By Slamming The Koch Brothers? | Velshi & Ruhle | MSNBC

President Trump, earlier in the Summer, called the Republican party’s most powerful donors a “total joke” on Twitter. Ali Velshi and Stephanie Ruhle break down why the Koch brothers are so important to the GOP and why the president is slamming them anyways. Weighing in: GOP Strategist Rick Tyler.