Slate did some digging into the dynamics underlying, presidential candidate and Baptist pastor, Mike Huckabee’s smear on Mormons:

In the early 1980s, Southern Baptist Convention leaders discovered—much to their horror—that 40 percent of Mormonism's 217,000 converts in 1980 came from Baptist backgrounds.

…And the SBC got serious about tempering the expansion of what was becoming the fastest-growing religion in the world. They developed programs, trained pastors, hosted Mormonism-awareness conferences, and published articles to help spread the message to Southern Baptists that Mormonism was a dangerous cult religion they had to avoid.

Huckabee may obfuscate what he knows or doesn't know about Mormons, but rest assured he knows Baptists and is making no subtle attempt to tap into their fears about Mormons.