Answer:
16
Step-by-step explanation:
The constitutional amendment that greatly increased the ability of the federal government to raise and spend money is the 16th Amendment. The 16th Amendment to the United States Constitution, ratified in 1913, granted Congress the power to levy and collect income taxes on individuals' and businesses' earnings. This amendment significantly expanded the federal government's revenue-raising capabilities and has played a crucial role in funding various government programs and activities.