FEDERAL WAY, Wash.— Newt Gingrich has been hitting Obama’s energy speech since the president delivered it Thursday, calling the speech funny enough to be on SNL and ”something worthy of Leno or Letterman.” Gingrich’s biggest talking point about Obama’s speech attacks the president for his embrace of investments in biofuels such as those made from algae. He is referring to a point in Obama’s speech when the president said, “We’re making new investments in the development of gasoline, diesel, and jet fuel that’s actually made from a plant-like substance known as algae.” “Believe it or not, we could replace up...