Wednesday marks 50 years since President Lyndon Johnson signed the landmark Civil Rights Act, outlawing discrimination based on race, ethnicity and sex. Gwen Ifill is joined by Todd Purdum to discuss his new book, "An Idea Whose Time Has Come,"…

After two years of work and battle, Congress seems close to a farm bill deal. Gwen Ifill talks to Bloomberg News' Alan Bjerga about what's in the bipartisan compromise -- including changes to farm subsidies and $8 billion in cuts…