Entryism. By definition it seems to be the left-wing moving more extreme rather than non left-wing all moving together towards the right. Democrats have shifted

Entryism. By definition it seems to be the left-wing moving more extreme rather than non left-wing all moving together towards the right. Democrats have shifted more to the left than Republicans to the right: https://archive.is/IILDt https://archive.is/IILDt