Louisiana's top elections official advised voters to do their homework about Today's hefty ballot and to expect a lengthy wait to get in the voting booth.  Secretary of State Tom Schedler predicted turnout for the election could top 70 percent in Louisiana after more than 350,000 people cast early ballots for Tuesday's elections, about 12 percent of Louisiana's 2.9 million registered voters.  The polls in Louisiana opened at 6 a.m. today and close at 8 p.m.  Schedler cited the long list of items on the ballot and the large number of people expected to show up. Anyone in line by poll closing time will be allowed to vote, so people could cast ballots well after 8 p.m.  Information about what's on the ballot is available on the secretary of state's website. Schedler's office also has a mobile application available for smart phones that provides personalized ballot information and polling locations.