The Liberal Democrat Deputy Leader Simon Hughes told ITV1's The Agenda that he is opposed to the statutory regulation of the press.
Lord Justice Leveson's report is published on Thursday.
The Agenda is on ITV1 at 10.35pm and at 11:35pm in Scotland.
More top news
Tiny Yorkshire Terrier, who survived an infection in the womb and was rejected by her mum, proves you do not have to be big to be tough.
The majority of parents forbid their child to walk to school because they worry for their safety, an exclusive poll has found.