"Limerick Contest" joke

This is from a contest on Long Island. The requirements were to use the words
Lewinski and Kaczynski in a limerick. Here are the 3 winners.
Entry # 1
There once was a gal named Lewinsky
Who played on a flute like Stravinsky
'Twas "Hail to the Chief"
on this flute made of beef
that stole the front page from Kaczynski.
Entry # 2
Said Bill Clinton to young Ms. Lewinsky
We don't want to leave clues like Kaczynski,
Since you look such a mess,
use the hem of your dress
And wipe that stuff off of your chinsky.
Entry # 3
Lewinsky and Clinton have shown
what Kaczynski must surely have known:
that an intern is better
than a bomb in a letter
given the choice of how to be blown.