Study: Republicans, whites more tired of Trayvon Martin coverage

While the story behind Trayvon Martin's shooting death continues to grab headlines, interest in the case is sharply divided along partisan and racial lines, according to a new study by Pew Research Center.

Far more Republicans (56%) than Democrats (25%) say there has been too much coverage of Martin's death, according to Pew, which surveyed a "nationally representative sample of 1,000 adults" last Thursday through Sunday about top new stories.

In addition, 43% of whites said the story has garnered too much coverage, compared with just 16% of blacks, Pew said.