Now Trump thinks even Fox News is biased against him

President Donald Trump is apparently unhappy with the way Fox News hosted a town hall with Sen. Bernie Sanders (I-VT) this week.
One moment that went viral, and seemed to surprise the hosts of the town hall, happened when the audience was asked whether they would like to give up their employer-sponsored health insurance in favor of a government-backed plan, like Medicare for All. The crowd cheered in favor of the idea.
Seeming to indicate that somehow Fox News — his favorite network, often mocked as a former of "state TV" — was somehow biased in favor of Sanders, Trump complained in a tweet Tuesday night that his supporters were kept out of the town hall:
Many Trump Fans & Signs were outside of the @FoxNews Studio last night in the now thriving (Thank you President Tru… https://t.co/vB5NyPTyI0— Donald J. Trump (@Donald J. Trump) 1555462661
Fox News host Bret Baier had said that the audience was ideologically mixed, with Republicans, Independents, and Democrats all in attendance.
Trump soon continued with an attack on Sanders, apparently irritated with the leading Democratic candidate:
Bernie Sanders and wife should pay the Pre-Trump Taxes on their almost $600,000 in income. He is always complaining… https://t.co/OCaJ6IfulO— Donald J. Trump (@Donald J. Trump) 1555463507