08/19/2010James Buchanan
I think a new one just came out this week.
If it is a fair coin then the probability is 0.5
It's a circulating coin, a dollar
None of the Presidential dollars are made of gold, no US circulating coin is gold, it's just a one dollar coin.
There were no coin sets made in 1789.
James Garfield $1 Presidential Coin
Yes, they are legal tender.
The next election will be in 2012.
The only coin I can think of featuring Jackson is the Presidential $1 coin with him on it. He also appears on the $20 bill, but that's not a coin.
It will be another four years until the next presidential election in the United States.
It is worth over three million dollars due to the rarity of the coin. Be careful not to confuse this with a standard Jefferson Presidential dollar coin, which is only worth $1.
Please be more specific