Democrat Pam Keith remains determined to break through in U.S. Senate race
Pam Keith keeps going in her determined efforts to break through in the Democratic battle for Florida’s open U.S. Senate seat. The Miami labor lawyer rarely appears in polls and is virtually never mentioned by the two Democrats who are viciously battling each other at the top of that contest, U.S. Reps. Patrick Murphy of Jupiter and Alan Grayson of Orlando. But she is taking the road of former state Sen. Nan Rich, whose 2014 gubernatorial campaign established her as the heart and soul of a Florida…