Sixteen Republicans and Hillary Clinton couldn’t beat Donald Trump in the 2016 presidential race. So, how about another business executive to take on now U.S. President Trump in 2020? The Washington Post takes a look at former Starbucks (Nasdaq: SBUX) CEO Howard Schultz and potential political aspirations. Starbucks is an iconic and popular brand. Schultz has been traveling the country talking about job opportunities, compassion and economic and social inequality. The former Starbucks CEO…