Jenna Dewan isn’t a rookie — and “Dancing With the Stars” fans have taken issue with her Season 35 casting. The actress, however, clapped back at haters in an Entertainment Weekly interview Wednesday, pointing out she does “not know how to ballroom dance.” The “Rookie” star, who was formerly a Janet Jackson backup dancer and co-starred with ex-husband Channing Tatum in “Step Up” in 2006, told the outlet, “Let’s be clear. It’s two different languages.” Dewan, 45, said, “There’s parts of my dance training that’s helpful, obviously. I’ve learned choreography, I can perform, but there is a certain sense of unlearning for me.” Noting that…
