Democratic and Conservative Divides, 'Krisha' and Dental Magic

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International trade deals have become an issue on the presidential campaign trail, we look at how they are perceived in rust belt states like Ohio, where voters go to the polls today.

Then, political in-fighting on the left and the right: How has Bernie Sanders forced Hillary Clinton to the left? And how is the conservative media split over Donald Trump?

Next, the star of the new film Krisha talks about her role and how the movie - directed by her nephew - mirrors her real-life family.

And finally, the promise of nanoparticles in the future of dental care.

Banner Image: Supporters of U.S. Republican presidential candidate Donald Trump hold up signs to drivers as they pass by on Super Tuesday in Middleburg Heights, Ohio March 15, 2016. REUTERS/Aaron Josefczyk