"15-year Rule":
2003 --> 2017
2006 --> 2020 ?
“Schwarzenegger ran for re-election against Democrat Phil Angelides, the California State Treasurer, in the 2006 elections, held on November 7, 2006. Despite a poor year nationally for the Republican party, Schwarzenegger won re-election with 56.0% of the vote compared with 38.9% for Angelides, a margin of well over 1 million votes.”
