**** the political left. They have never been liberal in any sense and it was Ronald Reagan who did most to infect the minds of simpletons with the idea that the left were the liberals.
he didn't need to tell anyone anything, or drag anyone anywhere, you must have slept through the 60's 70's or have never picked up and read any books and looked at just what became of liberalism in the early 60's.
Johnson went to war on society armed with opinion newly massaged and crafted by the utopian liberal/progressive social/academic mish mash, they have never been called to account to answer for their failures, so they did the next best thing, they pulled the democratic party after 68 to the left and they have kept on going.......
government is always the answer they'll tell you, when you raise particulars, their answer always seems to wind up- the system is broken, oh and its broken because we never really did it the way they wanted the rest of us too, we never spent enough or were moving far left enough to realize their impossible Utopian ideals, so they sit back with the arm patches and pipe and spin tales of our ingratitude, how simple we are, just dumb to understand..........sound familiar?
Pulled the party to the left?

You consider the middle, left?
I don't know what is sadder. Your ignorance or your stupidity?
1964 an incumbent President.
The Democrats rejected the most progressive candidates in 1968. Although Humphrey was a progressive DFLer, he was strongly aligned with liberalism. During World War II, Humphrey tried twice to join the armed forces.
1972 The Democrats elected
George McGovern - Wikipedia, the free encyclopedia over McCarthy and Muskie
1976 Carter over others.
1980 Carter over the Lion of Liberalism, Edward Kennedy. Carter was the incumbent President.
1984 Mondale over the others.
1988 Dukakis over others
1992 Clinton
1996 Clinton
2000 Gore
2004 Kerry
2008 Obama
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none of the candidates listed were from the left wing of the DNC. None.
and btw, there is no left wing media or left wing major party. Left wing ideas get slapped down very quickly.