That's a different phenom entirely. People flip flop on policies because they are part of social groups, not coherent ideologies. They don't perceive themselve

That's a different phenom entirely. People flip flop on policies because they are part of social groups, not coherent ideologies. They don't perceive themselves as flip flopping, because of course they have not changed groups. If a 'strong' leader of a group such as the President, characterizes something as positive, followers will buy it. Especially when there is a political divide, people tend to be 'against' ideas as well, much more so if 'the other side' approves or proposes them. If you gave any number of policy recommendations to a random group, and indicated at random they were proposed by either Republicans or Democrats, I suggest you'd get responses more consistent with group alignment than ideological alignment.