Nearly three-quarters of Americans agree that voters should show photo identification before being allowed to vote, an Associated Press poll suggests. Seventy-two percent of Americans participating in the survey, conducted between Mar. 26 and 29, said they are in favor of requiring all voters to provide photo ID in order to vote. Another 14 percent said they neither support nor oppose the measure, while the remaining 13 percent said they are against such a requirement. The poll was conducted among 1,166 adults living in the United States via internet, landline, and cell phones, with a plus or minus 3.6 percent error margin. The sample was drawn using a probability-based system by the NORC Center for Public Affairs Research at the University of Chicago to represent the composition of the U.S. population. The popularity of a voting ID requirement is supported most by Republicans, according to NORC, with 91 percent of …