Story here, questioning Luntz's objectivity in his current role praising Rubio in the debates.
Luntz was caught in an audio recording in 2013 complaining that conservative radio talkers Rush Limbaugh and Mark Levin were destroying Rubio over the Gang of Eight immigration amnesty bill which Rubio co-sponsored.
It's safe to say that Luntz has been loyal to Rubio for a long time for a reason.
