Huckabee, who served as governor of Arkansas for 10 1/2 years, dropped out of the race in March, after John McCain won enough delegates to clinch the Republican nomination. Despite a financially strapped campaign, Huckabee won the leadoff caucuses in Iowa and seven other states.
"I hope to bring the unique perspective from `inside the dragon's belly' as well as to try and speak for the millions of hardworking middle-class Americans who really do feel that their voices are not being heard," Huckabee said in a statement released by his daughter, Sarah. "I saw that on the campaign trail and continue to see as I speak to groups of all kinds around the country as well as campaign for other candidates."
Financial terms of the agreement weren't released.
Huckabee, an ordained Baptist preacher, has been mentioned as a potential running mate for McCain. Since leaving the race, Huckabee has formed a political action committee that he says will help raise money for McCain and other Republicans.
