The Articles of Confederation created a weak central government that lacked power to tax, regulate trade between states, or raise an army. This instability was exacerbated by economic troubles after the Revolutionary War. In response, the Constitutional Convention proposed a new Constitution with a stronger federal government consisting of legislative, executive, and judicial branches separated by checks and balances. However, some opposed this, fearing a loss of state power. The Constitution was narrowly ratified after compromises like equal representation in the Senate.