Bush's and Clintons Will Trade the White House office for the Next 30 Years

Here's the pattern

1988
George Bush, Sr.
1992
Bill Clinton
1996
Bill Clinton
2000
George Bush, Jr.
2004
George Bush, Jr.

If

2008
Hillary Clinton

Then

2012
Laura Bush
2016
Chelsea Clinton
2020
Chelsea Clinton
2024
Jenna or Barbara Bush's husband
2030
Jenna or Barbara Bush's husband