By Jon Healey, Los Angeles Times (TNS) How bad does a Republican senator have to screw up to draw an on-air condemnation from Fox News’ Tucker Carlson? Evidently, he has to appear both self-serving and hypocritical. The target of Carlson’s ire is Sen. Richard Burr (R-N.C.), the subject of twin exposes by ProPublica and NPR. The pieces showed how Burr painted a far more negative picture of the coronavirus’