Sen. Lindsey Graham, R-S.C., said today that skeptical Republicans and Democrats should throw their support behind climate change legislation not only because it's good for the economy and the environment, but because Congress desperately needs a win under its belt. "We tried immigration. It's hard. And we failed. We tried Social Security. It's hard. And we failed. We tried health care. It's really hard. And it looks like we're going to have to start over again," Graham somberly told a luncheon audience of energy and climate advocates on the Hill. "On the energy, climate change front, I don't want to...