Text: Though Ackerman's claims were dismissed by anti-impeachment scholars such as Lawrence Tribe, they are not without their supporters, and he has now presented them in a minibook, The Case Against Lameduck Impeachment . Another project, written with Yale colleague Anne Alstott, is even more outre.
Entailment: Lawrence Tribe is an anti-impeachment scholar.
Contradiction: Lawrence Tribe is a pro-impeachment scholar.