Quickie

Just a quick thought I wanted to share... I was listening to a talk radio station as I was driving to lunch and I heard yet another blatantly socialist politician referred to as "progressive". I've also heard right wing hosts call this person a radical and this got me thinking... Why is it that in America the left calls a socialist a progressive and the right calls them radical when our founders were both radical and progressive but not socialist? Our founders were obviously radical in that that first rebelled against the largest military power in the world at their time and then turned right around and put in place a nation ruled by its citizenry in a time when monarchy was the government of choice almost worldwide. And it is hard to look back at history and not label them progressive since it was their goal to take huge steps forward in the cause of freedom for the average person and great progress was clearly made both in their time and the ensuing generations thanks to the rights our Constitution sets forth. I'm pretty sure no student and supporter of the Constitution would vote for any politician calling themselves a progressive now days, so when did this change in terminology occur? Can anyone please explain this to me?