Vice President Joe Biden has raised some eyebrows again with his latest bit of fiery anti-GOP rhetoric on the campaign trail. At his appearance yesterday in Las Vegas, Biden brought up the "Young Guns" book that was co-authored by Rep. Paul Ryan (R-Wis.) and two other Republican House members.

"They have guns, but no bullets," a crowd member was reported to have shouted to Biden at that point,

who responded by saying, "Unfortunately, the bullets are aimed at you,” drawing laughs from the audience.

The comment comes a few months after Biden took criticism for saying "they're gonna put y'all back in chains" at a Virginia rally, with some saying he was invoking images of slavery.