1. Dunning-Krueger or, in other words, Congress probably thinks they know better. 2. Politicians, per definition, are elected to represent the interests of the

1. Dunning-Krueger or, in other words, Congress probably thinks they know better. 2. Politicians, per definition, are elected to represent the interests of their constituents. Many constituents disagree with experts (climate change, for example). QED, there is little motivation for politicians to listen or follow the advice of experts, especially if an expert's conclusion is not popular.