Westminster wonks, think tanks and political ideas

The so-called Westminster Bubble has think tanks to bring out political ideas, researching ideas and some are the first steps on the path for a wonk to be become an MP.

In a Daily Politics film, Giles Dilnot puts on a thinking cap to look at what they do with Nick Pearce, from the Institute for Public Policy Research, and Conservative MP Charlotte Leslie, who was at the Policy Exchange think tank.

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