The constitutional power of the European Union is an element that must be agreed upon by all member states, current ones as well as those that want to become part of this community. The Constitution is the fundamental legal act of every country, and most citizens are sensitive to the fact that they have to change "their" Constitution because of foreigners. Nevertheless, the constitutionality of the Union is something that has been developing for more than half a century, just like the Union itself. The European Union wants to guarantee the states their autonomy, but at the same time reminds them that they are part of the community and that they must act collectively if they want the integration to be truly fruitful for all involved. The Union must act on a compromise, but only if it is based on tangible facts and not on the whims of politicians, lawyers, statesmen, and even citizens.