I hate the phrase "a must read", so I'll say you really really should read the letter written to Newt Gingrich by his sister Candace.
I recently had the displeasure of watching you bash the protestors of the Prop 8 marriage ban to Bill O'Reilly on FOX News. I must say, after years of watching you build your career by stirring up the fears and prejudices of the far right, I feel compelled to use the words of your idol, Ronald Reagan, "There you go, again."
However, I realize that you may have been a little preoccupied lately with planning your resurrection as the savior of your party, so I thought I would fill you in on a few important developments you might have overlooked.
The truth is that you're living in a world that no longer exists. I, along with millions of Americans, clearly see the world the way it as -- and we embrace what it can be. You, on the other hand, seem incapable of looking for new ideas or moving beyond what worked in the past.
...(full letter at Huffington Post)