"Blackmun's files show how thoroughly his thinking about Roe and its companion case, Doe v. Bolton, changed and expanded in the year between initial oral arguments and the court's rulings. His first draft of Roe dismissed the law in question, a Texas abortion ban, as too vague. In pre-argument notes for Doe, he wrote that another abortion ban, one with limited exceptions, was "pretty good and strikes a good balance of the asserted interests.""