Barack Obama once said that Ludacris was one of his favourite rappers. So Lud has returned the favour with new Barack-backing track Politics. Get a room... but wait. The presidential candidate's now changed his mind, and isn't happy with some of the rapper's rudeness.

Bizarrely, Mr Obama does not wish to be associated with lines like this:

"Put me in office, make me vice-president / Hillary hated on you so that bitch is irrelevant..."

Or this:

"McCain don't belong in any chair unless he's paralysed"

Or this:

"Bush is mentally handicapped"

Says a spokesman for BO:

"As Barack Obama has said many, many times in the past, rap lyrics today too often perpetuate misogyny, materialism, and degrading images that he doesn't want his daughters or any children exposed to."

Ludacris, we think he's trying to tell you that it's over.

NME: Barack Obama rejects Ludacris' Bush hating rap