Sharyl Attkisson leaves CBS, frustrated by "network's liberal bias"

I have long mentioned Sharyl Attkisson's reporting on this blog, and I have admired her work.  It is unfortunate that she is leaving CBS, though not particularly surprising.  From Politico:

CBS News investigative correspondent Sharyl Attkisson has reached an agreement to resign from CBS News ahead of contract, bringing an end to months of hard-fought negotiations, sources familiar with her departure told POLITICO on Monday. 

Attkisson, who has been with CBS News for two decades, had grown frustrated with what she saw as the network's liberal bias, an outsized influence by the network's corporate partners and a lack of dedication to investigative reporting, several sources said. She increasingly felt like her work was no longer supported and that it was a struggle to get her reporting on air. 

At the same time, Attkisson's own reporting on the Obama administration, which some staffers characterized as agenda-driven, had led network executives to doubt the impartiality of her reporting. She is currently at work on a book -- tentatively titled "Stonewalled: One Reporter's Fight for Truth in Obama's Washington" -- which addresses the challenges of reporting critically on the Obama administration. . . .