American politics may be a nonstop car crash right now, but wrapping “Shifting Gears” Season 1, Kat Dennings sounded hopeful. A self-described “curmudgeon,” the actress returned to the multi-cam format this spring opposite Tim Allen for ABC’s odd-couple comedy — about a father and daughter reuniting from across opposite sides of the aisle.
“I’m not what you call a super positive person,” Dennings told IndieWire after filming the season finale. “I kind of expect the…