James Cleverly wrote: "We may be coalition partners but it doesn't stop me thinking Simon Hughes is a dick."
In fuller comments, made on his blog, Mr Cleverly called Mr Hughes a "fool" and said the idea was "bone-headed".
He added: "Simon Hughes clearly feels that he is the 'real' voice of the Lib Dems.
This is abuse:
Simon Hughes is an arrogant, overly-entitled cunt with shit for brains and filled to the brim with fucking impractical, statist bullshit ideas. He deserves to meet his end impaled and screaming, followed by the mounting of his fat ugly head on a pike outside the Houses of Parliament as a warning to the other troughing cunts to get their own fucking house in order before trying to tell the rest of us how to live our fucking lives.