U.S. Presidents and their opponents(2000-)

2000 election: George W. Bush(Republican)

Al Gore(Democratic)

2004 election: George W. Bush(Republican)

John Kerry(Democratic)

2008 election: Barack Obama(Democratic)

John McCain(Republican)

2012 election: Barack Obama(Democratic)

Mitt Romney(Republican)

2016 election: Donald Trump(Republican)

Hillary Clinton(Democratic)

2020 election: Joe Biden(Democratic)

Donald Trump(Republican)