All’s fair in love and video clip editing, which means a lot of campaign-related video — pro and amateur alike — is getting put through the mashup machine at YouTube. Below, we present two cases in point.

If you spot funny mashup video about politics, send us a link. Contact info’s at the bottom of the page.

First came…

“Yes We Can,” a pro-Obama music video by will.i.am of the Black Eyed Peas (4:30)

Then came…

“John He Is,” an anti-McCain music video by a collective called the Public Service Administration (1:38)

Below the jump, Jack Nicholson endorses and un-endorses Hillary Clinton.

Continued: Click “Read More” First came…

Jack Nicholson clips endorsing Hillary Clinton (1:16)

Then came…

Jack Nicholson clips condemning Hillary Clinton (1:50)