Glenn Greenwald puzzles over how to change the dynamic:
. . . whatever else is true, one thing is for certain: dedicated partisans who pledge their unbreakable, eternally loyal support for any Party or politician are going to be steadfastly ignored (or worse) by that Party or politician, and rightfully so. If you spend two years vehemently objecting that certain acts so profoundly offend your principles but then pledge unequivocal support no matter what almost two years in advance to the politicians who engage in them, why would you expect your objections to be heeded? Any rational person would ignore them, and stomp on your beliefs whenever doing so benefited them.