Israel's reluctance on Lebanon ceasefire complicates U.S.-Iran deal, first full day of G7 summit gets underway in France, what to watch as voters in several states head to the polls for primaries.
One of the world's leading brain research centers is shifting away from fruit flies and toward a tiny, transparent fish. The goal: to understand how brains control the behavior of an animal or human.
Voting officials worry that the Department of Homeland Security will not be a partner helping to secure elections, but rather a threat seeking to undermine results that President Trump dislikes.