BLOOMEKATZ, Circuit Judge. The legal questions in this appeal arise from a bitter fight pitting a son against his father and stepfamily over a family business. Scott Gammons claims that Adroit Medical Systems, Inc., Grazyna Gammons (his stepmother), Kelley Patten (his stepsister), and Gene Gammons (his father) (collectively, the defendants) diverted company funds for Grazyna and Kelley’s personal benefit without accounting for the tax consequences. According to Scott, the defendants fired him because he reported their alleged financial malfeasance to the Internal Revenue Service. He further claims that if the defendants are not removed from the business, they will continue misappropriating company funds. Scott brought an action seeking recovery under federal and state whistleblower statutes and state common law. The district court granted the defendants summary judgment on all five of his claims, reasoning that Scott had obtained a legally baseless emergency conservatorship over Gene and used it to mount a corporate takeover. After the defendants regained control of the family business, that coup—irrespective of any whistleblowing—motivated their decision to fire Scott, defeating Scott’s claims as a matter of law. We affirm.

CHAD A. READLER, Circuit Judge. Chappelle Gales’s mother passed away while residing in a nursing home. Gales attributes her mother’s death to inadequate care, so she sued the facility for medical malpractice under state law. Gales hired an expert witness to testify on her behalf. But the district court excluded the expert’s testimony due to his unfamiliarity with local medical standards. And without expert testimony to support her claims, the district court held, Gales’s suit could not proceed. Finding no abuse of discretion by the district court, we now affirm.