the 2008 Northern Mariana's Delegate election, the first Election for a full House Delegate after the abolishment of the Resident Representative office that had no privileges in either chamber, resulting in Current Delegate, Gregorio Sablan, unseating "incumbent" Pedro Tenorio
This was the first times that Dems held the US House office from the Northern Mariana Islands, the Most Republican US Territory since Resident Representative, and (at the time future) Governor Froilan Tenorio held it in 1989. Gregorio Sablan, still holds the office to this day.