Politician: Critics of the wetlands-protection bill are delaying passage of this important legislation merely on the grounds that they disagree with its new, more restrictive definition of the term “wetlands.” But this bill will place stricter limits on the development of wetlands than the existing regulations do.
Conclusion
The critics of this bill don't really care what happens to our wetlands.
Evidence
They oppose the bill because it changes the term "wetlands" to something that is more restricting, more limiting, so they're just quibbling over semantics.
Evaluate
Is that "semantics"? That would be like if people who opposed DoMA (1996's Defense of Marriage Act) said and the respondent was like, .
The definition IS substantive!
In the case of DoMA, it affects whether or not same sex marriages are legal. In the case of the wetlands bill, it affects where companies can / can't develop.
Goal
Look for an answer that sounds perhaps like an Ad Hominem answer, suggesting that our author is hastily dismissing her opponent's concerns as "quibbling", when they could easily be substantive concerns about what the negative effects of a more restrictive definition of 'wetlands' would mean for the area.