Lou Dobbs, the longtime CNN anchor whose anti-immigration views have made him a TV lightning rod, said Wednesday that he is leaving the cable news channel effective immediately to pursue new opportunities.

“Over the past six months, it has become increasingly clear that strong winds of change have begun buffeting this country and affecting all of us, and some leaders in media, politics and business have been urging me to go beyond the role here at CNN and to engage in constructive problem-solving as well as to contribute positively to a better understanding of the great issues of our day and to continue to do so in the most honest and direct language possible,” Dobbs said during his 7 p.m. broadcast.

Klein hailed Dobbs’ “appetite for big ideas, the megawatt smile and larger than life presence he brought to our newsroom.”

“With characteristic forthrightness, Lou has now decided to carry the banner of advocacy journalism elsewhere,” Klein said. “We respect his decision.”