In two years' time there is a presidential election, and the voters could swing again.

两年后有一次总统竞选，选民们有可能再次大转向。

《柯林斯英汉双解大词典》

He was the first Democratic Party candidate to win a presidential election in almost twenty-eight years.

VOA: special.2010.05.06

A low turnout could also damage the credibility of the presidential election Afghanistan's first in five years.

VOA: standard.2009.08.24

Greater numbers are the norm in presidential election years, when voter turnout is higher, officials said.

CNN: Federal observers and monitors heading to polls

We keep talking about all the demographics that skew in the Democrats' favor in presidential election years.

NPR: With White House Bogged Down By Scandal, GOP Looks For Boost

For 16 days every late summer in presidential election years, American viewers are bombarded with Olympic sports that feed patriotic feelings.

FORBES: The Olympics Help Republicans