5:19pm PT: CBS News calls the Indiana primary for Sen. Clinton, however none of the other networks have followed.
Update (6:32pm): At 5:15pm Clinton was leading Obama 55% to 45% in Indiana. As of 6:32pm that lead has been cut to 52% to 48%. And Lake County (which includes Gary, right outside of Chicago) and a large hunk of Monroe County (home to Indiana University) have yet to report.
That is why none of the other networks outside of CBS have called the state for Clinton. MSNBC has moved the race from "too EARLY to call" to "too CLOSE to call."
Whatever happens, Clinton has had - without a doubt - a pretty bad night.
More to follow.