If Angelina Jolie’s father, Jon Voight, wants to FaceTime with the kids, he’s just got to follow one rule: no talking politics! “Angie and Jon are on polar opposite sides of the political spectrum, and he can be pretty outspoken about his conservative views,” a source tells Life & Style. “They’re on good terms right now, though, and Angie just wants to keep it that way.” The 44-year-old actress reportedly stopped speaking to her dad in 2002, but their strained relationship soothed after she became a mother of six — and the 81-year-old actor has grown close to Maddox, 18, Pax, 16, Zahara, 15, Shiloh, 13, and 11-year-old twins Vivienne and Knox. “At the end of the day, family is family,” the source notes, “and the kids love their grandpa.”…