Complex sentence: Kennedy had been expected to be the swing vote overturning Roe v. Wade in Planned Parenthood v. Casey, but instead voted to uphold it, with the evidence suggesting he changed his mind between conference and the final vote.
Split into simpler sentences: Kennedy had been expected to be the swing vote overturning Roe v. Wade in Planned Parenthood v. Casey, but instead voted to uphold it. There is evidence to suggest he changed his mind between conference and the final vote.