The latest presidential approval poll shows Barack Obama's ratings at his lowest point of his tenure: 42 percent. But the three major broadcast networks took no notice whatsoever on their Wednesday evening newscasts. Neither CBS, NBC, nor ABC reported the Quinnipiac poll results on their respective evening news broadcasts. The results, released Wednesday, recorded 42 percent of respondents approving of the job President Obama is doing, and 48 percent disapproving.