27 See link: http://www.usconstitution.net/const.html
171 amendments
27... Here's a list. Amendment 1 - Freedom of Religion, Press, Expression Amendment 2 - Right to Bear Arms Amendment 3 - Quartering of Soldiers Amendment 4 - Search and Seizure Amendment 5 - Trial...
threve
According to Article V of the US Constitution, 3/4 of the states are needed to ratify a Constitutional amendment. As there are currently 50 states, 38 states are needed to do this.