所以说，川普要连任了？施瓦辛格2006连任竞选成功，2006+15 ～= 2020

"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.”