Which sentence is punctuated correctly?
The presidential China Room displays all the White House china: in fact, almost every past president is represented there.
The presidential China Room displays all the White House china, in fact; almost every past president is represented there.
The presidential China Room displays all the White House china; in fact, almost every past president is represented there.
The presidential China Room displays all the White House china, in fact, almost every past president is represented there.