February 28 — US Democrats are moving to the left, we are told. It is not yet clear that the median voter is in fact moving left, nor the median congressman who was elected last November. But it is clear that many of the candidates for the 2020 Democratic presidential nomination are experimenting with “bold new ideas”, or at least bold rhetorical formulations. They are receiving what seems a disproportionate amount of attention for doing so. Many of the policy proposals, if interpreted literally, are not entirely practical, either economically or politically.