...Cruz doesn't tithe. He and his wife donated less than 1 percent of their income to charity and nothing to churches, including to their own in Houston, according to tax returns from 2006 to 2010, the most recent Cruz has released. His campaign declined requests from The Associated Press to provide recent tax returns or otherwise demonstrate donations since 2010. Cruz has said he and his wife were more focused on using their seven-figure annual income to build a financial foundation for their family.