Passage Summary: A politician argues that since the only way to fix the homelessness crisis is through government housing, and that housing costs money, we have a practical obligation to hike taxes.

Conclusion: The government should increase taxes.

Reasoning: Solving the homelessness problem requires government-provided housing, and providing that housing requires more tax revenue.

Analysis: The argument establishes a chain of necessity: solving the problem requires housing, which in turn requires taxes. However, it leaps from 'taxes are necessary to solve the problem' to 'we should raise taxes.' To justify this, we need a principle that says if a certain action is the only way to solve a major problem, we ought to take that action. Look for a principle that bridges the gap between a necessary condition and a moral or political obligation.