Tonight’s Democratic presidential debate will be sponsored by Politico and PBS, simulcast by CNN, and moderated by Politico chief political correspondent Tim Alberta, along with PBS NewsHour’s anchor and managing editor Judy Woodruff, senior national correspondent Amna Nawaz, and White House correspondent Yamiche Alcindor.

Politico and CNN have demonstrated time and time again their systemic and institutional anti-Sanders bias. Who can forget Politico’s piece showing Sanders standing next to a tree with dollars for leaves, or CNN cutting away from a Sanders speech to show an empty podium with the chyron “Standing By for Trump to Speak”?

But as an individual, PBS’s Alcindor has a long and documented history of hostile, unfair coverage of Sanders.