Flight from LV to Miami ID passport

Flight from LV to Miami ID passport ?
I'm traveling from LV to Miami what kind of ID can I use ? state ID ? If I'm foreign my Passport is fine? I've been told I need a state ID .. my passport is ok ? can anyone tell me ? thanks!
Air Travel - 4 Answers
Random Answers, Critics, Comments, Opinions :
1 :
The Transportation Security Administration is the regulatory agency. Their ID Requirements for Airport Checkpoints is found in the source below. A passport is an acceptable form of ID; perhaps the best form as it identifies you and your citizenship.
2 :
Either one should be ok. If you're foreign, you already have a passport.
3 :
Using your passport is a very good identification to use while flying, even domestic flights. The TSA just have to shine a blue light on it to authenticate it and you are through to get screened
4 :
Yes, your passport is fine.