The Articles of Confederation better fit the promises of the Declaration of Independence than the Constitution of 1789.
There are two pages for this topic each containing sources that will be helpful for the construction of your argument. Click on the links on the left navigation bar.
Citation: Feldmeth, Greg D. "Articles of Confederation vs. The Constitution," U.S. History Resources http://faculty.polytechnic.org/gfeldmeth/chart.art.html (24 June 2004