Of the two, Hubbard is decidedly more progressive and would make a much stronger candidate in the long run. Sadler is vague and uninspiring.
When was the last time a progressive won in Texas?
1964 - incumbent Sen. Ralph Yarborough (liberal Dem) defeats George H. W. Bush by painting him as an effete Yankee elitist (oh the irony) who was also somehow a rabid fire-breathing Goldwaterite racist at the same time; Yarborough got primaried in '70 by conservative Dem Lloyd Bentsen, who went on to defeat George H. W. Bush (who was then made Nixon's Ambassador to China after John Connally told the president he had really earned it after being sent to slaughter twice in a row).
