MJ Rosenberg. Photo: Pulse Media.

JTA – MJ Rosenberg, the controversial critic of Israeli policies who drew fire for using the term “Israel firsters,” is leaving the liberal media watchdog, Media Matters.

In what he billed as his last column for the group on Friday, Rosenberg said he would now blog on his own website MJayRosenberg.com.

“The reason for this step is that it disturbed me greatly to see an organization to which I am devoted facing possible harm because of my critical writings about Israel,” he wrote.

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