It’s become a standard pattern in the major news media. Instead of presenting people with a poll of the actual candidates in the presidential election, they offer people an imaginary choice between only Trump and Clinton and report the results. Sometimes, several paragraphs down, they’ll add the results where people are allowed to choose from any of the candidates. With Johnson frequently topping 10%, that’s a huge omission. The New York Times has outdone them all, though.
Take a look at the following screen shot, which I got from this page. Trump’s and Clinton’s faces and numbers are shown, and below is a faceless, numberless button that says “Show Gary Johnson.” The candidates from the Green and CIA parties don’t even get that much acknowledgement. That’s not just being biased, it’s shoving bias in our faces and bragging.