Answer: A secondary source of information is one that was created later by someone who did not experience first-hand or participate in the events or conditions you're researching.
Explanation:
The Constitution provides that an amendment may be proposed either by the Congress with a two thirds majority vote in both the House of Representatives and the Senate or by a constitutional convention called for by two thirds of the State legislatures.
Based on the bill of rights, popular sovereignty, personal responsibility and the power of the government.