You can watch Tuesday's Cross Question in full again here.
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Iain Dale was joined by:
Jo Gideon - Conservative MP for Stoke-on-Trent Central.
Ben Riley-Smith - Political editor of The Daily Telegraph.
Parmjit Dhanda - Labour campaigner and former MP and minister in the Blair and Brown governments - who is now executive director of the Back Heathrow campaign to support the airport's expansion.
Christine Jardine - Liberal Democrat MP for Edinburgh West.
Cross Question is live every Monday, Tuesday and Wednesday from 8pm. You can watch live on Global Player.