Keith Olbermann lambasted the "morning morons" at Fox & Friends on Thursday night's "Worst Persons" segment of Countdown.

The hosts of the Fox News morning program tried to counter a Princeton study showing that illegal immigration had fallen to the lowest rate since the 1950's by commenting on a picture of someone climbing over a border fence.

"Reporting indicates that illegal immigration across the border has sputtered to a trickle during the Obama administration, except for Doocy and Carlson, who appear to have gotten into this country from planet Hayseed in the galaxy of Andromeda," Olbermann said.

Watch video, courtesy of Current TV, below: