Dobbs, 65, left CNN abruptly in November 2009. He joined the network when it launched in 1980 and, in his later years there, used his nightly program, "Lou Dobbs Tonight," as a soapbox for rants on illegal immigration, federal spending and President Obama.
For years, in his "Broken Borders" segment, Dobbs warned of dangers he said illegal immigrants posed; he ran a false report on the number of leprosy cases in the United States reputedly caused by Mexican immigrants. He also railed against many plans that called for a path to legalization for illegal immigrants. Protests and campaigns were launched to get CNN to "dump Dobbs."
Despite the furor, Dobbs said his next move after CNN might be in the political arena.
"I was thinking about running for office, thinking about politics," he told ABC News' Nightline in January. "A number of people have asked me to think about president, Senate, and as I have said, it's flattering. It's heavy stuff. And I would be lying if I told you I wasn't enamored at various junctures of my thinking, with the idea."
ABC News' Melinda Arons contributed reporting.