‘Chappaquiddick’ is a murky exploration of an infamous political scandal

If you lived through the 1960s, no one has to tell you what the word “Chappaquiddick” means.

It's an island off the coast of Massachusetts where, on July 18, 1969, Sen. Ted Kennedy of Massachusetts drove a car off a small bridge into a pond, killing its occupant, a young woman named Mary Jo Kopechne….