No you do not.
However, if you are greencard holder etc, you might want to carry it.
Because Alaska is part of the US, you don't really need a passport to go there unless you are driving through Canada or are from Another Country. Its like asking if you need a passport to go from Nevada to California....
A passport is now required.
You will if you are driving through Canada.
Alaska is a state just like California. You do not need a passport to move from one state to the other. The only reason you would need a passport to get to Alaska is if you were driving, which requires you to go through Canada.
As both Maine and Alaska are U.S. States, you do not need a passport to get there.
No, you do not need a passport inside the US but you will need a valid picture ID.
No.
Yes, you need a passport to go on a cruise to Alaska if the cruise departs from a U.S. port and stops at a foreign port.
No.
No.
Not if you are a US citizen
Are you American? Then you'd need transport visa if you want to cross the Canadian borders. You don't need any passport if you want to go from Texas to Alaska on plane :)
No,because Alaska is part of the united states.