Answer: Germany's policy of unrestricted submarine warfare can take more credit for that. But the telegram was useful for convincing the American public that it should be sending its men over to Europe to fight. The telegram had proved the perfect justification for a change of policy and to convince some of the skeptics. Also, on February 1917 the telegram sent by the German foreign secretary, Arthur Zimmermann, to the German minister in Mexico. The telegram suggested that in the event that Germany and the US went to war, Mexico would regain "lost territories" in the southwest if it declared war on the US.
According to the Articles of Confederation, nine out of thirteen states must agree on a bill in order for it to become a law. In order to change the actual Articles of Confederation, all thirteen states must agree on the change. This shows one of the many flaws of the Articles of Confederation. Getting a significant amount of states to agree on a new law or all states to agree on changing the Articles of Confederation is extremely difficult. This made the federal government weak.
They believed that it was unlawful to force children to attend public schooling when their parents might not want it, and saw it as an infringement of rights. Furthermore, many children were home schooled at the time, though this trend was declining, so public school wasn't seen as so much of a necessity.