Flake does have a vertibrae:

Jeff Flake says he wants the FBI to do a “real investigation” on Kavanaugh: “It does no good to have an investigation that just gives us more cover, for example. We actually need to find out what we can find out.” (via ABC) pic.twitter.com/RuYjXZeCyM

— Kyle Griffin (@kylegriffin1) October 1, 2018