Next Sunday, 18 November, on the Politics Show, Nick Clegg and Chris Huhne, the two contenders for the Lib Dem leadership, join Jon for a face to face on the Politics Show sofa.
No laughing matter: with ballots about to go out, it is getting serious
It will be one of their last chances to make their case - ballot papers go out to party members across the country on the 21 November.
Each week, the Politics Show website has been bringing you the insider's view, but now it is your chance to get involved.
We would like to know what you think we should ask them...
E-mail us your questions in the online e-mail form below, then join us for the Politics Show on Sunday 18 November 2007.
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