Barometric? A barometer is a device used to measure air pressure. No matter how hard we tried, we couldn't gauge her meaning. Was she saying he owed his stardom to hot air? Or to high-pressure situations?
Of course, it's entirely possible she meant to use the cliche "meteoric," which in this context means swift. But surely this Kennedy relative is swift enough to know a cliche isn't a good way to start a new column -- especially if she doesn't quite, um, hit the nail on the head.