I'm contemplating Hillary in 2008, Jeb Bush in 2017, Chelsea Clinton in 2025, George P. Bush (Jeb's son) in 2033, Mr. Chelsea Clinton (e.g., Chelsea's husband) 2041 and then Jenna Bush 2049! (or Barbara Bush or both (Pres and VP) in 2049, and then the other one in 2057!!
For details:
Bush and Clinton forever! Americans under the age of 45 have never voted in a presidential election without a Bush or a Clinton on the ballot, either in the Presidential or Vice Presidential slot. (President George Herbert Walker Bush was on the winning 1980 republican ticket as Ronald Reagan's VP.)
Americans under the age of 37 have never voted in a presidential election without a Bush or a Clinton on the ballot as the choice for President.