The United States of America existed for 14 years before the constitution was written.
We delcared our selves to be the United States of America when we declared our indpendance from England in 1776. A little document adopted by the congress called the Declaration of Independence formed our nation.
We officially became the United States of America in 1781 when the revolutionary war was won and Engand and the rest of the world recognized us as the Unites States of America. France and a few other nations had recognized us as a nation earlier.
The first constitution of the United States was called the "Articles of Confederation" of the United States. It was in effect as the contitution of the United sTates of America until 1789.
Then in 1789 a new constitution was adopted that replaced the articles of confederation .. the new one as amened is still in use today. When the second contitution was adopted Washington was selected as the first president under the new constitution. Under the new constitution the people did not have the right to vote for the president. Washington was selected by the Electoral college. The members of the electoral college were selected by the individual state legislatures as were the Senators. ONly house members were elected by the people in direct elections.
Washington was the the first president selected by representatives of the state legislatures under our second constitution. He was not our first Chief Executive... no more than the next president of IRAQ will be its first President.
During the first years of this nation's existance Washingon was the commanding General of our Army. He was constantly begging the government fo the United States of America for more money for the Army. Other men were the political leaders during the war period. The Articles of confederation were more like the British form of government. Our leaders job description was more like Tony Blairs job description than George Bush's.
This nation existed for 14 years before Washinton became president. Does any one beleive it managed to last for 14 years with out a government or an executive to run it?
No, but the office of President of the United States did not exist then.