“Our political system is rife with religion and it depends too much on religion and not enough on substance," said David Silverman, president of American Atheists, sponsor of the ads.

"Religion is silly and religion has components that are inherently divisive. … There is no place for any of that in the political system,” he said.

The billboards go up Monday in Charlotte and will stay up for a month at a cost of roughly $15,000. The Democratic convention runs September 3-6.

The billboard targeting Christianity features an image of Jesus Christ on toast and this description of the faith: "Sadistic God; Useless Savior, 30,000+ Versions of ‘Truth,’ Promotes Hate, Calls it ‘Love.’ ”

The billboard targeting Mormonism lambastes – and, Mormons would say, distorts – specific Mormon doctrines: "God is a Space Alien, Baptizes Dead People, Big Money, Big Bigotry.”