About 20% of the vote is in and Bernie Sanders leads Hillary Clinton by 27 votes. Yes you read that number correctly.
Clinton had a nice lead after some early returns but, as you can see, Sanders has roared back.
One area to watch is Marion County (Indianapolis). This is an area with an African American population of nearly 30%.
The other is Lake County (Gary) which is another area with a high African American population. In 2008 is was one of the last counties to report vote totals. So if the vote is still 50/50 across the state before Lake County reports, it makes Clinton a slight favorite to win.