Last week Hillary penned an article published in Virginia saying that she still had the support of 'working class white Americans', and said later she regretted writing the words.
Now she's gone a step or two further mentioning the assassination of Robert Kennedy in an inappropriate manner.
From Stephen Collinson of AFP.
"We all remember, Bobby Kennedy was assassinated in June in California, I don't understand it," Clinton said.
Obama spokesman Bill Burton condemned her comment as "unfortunate" and said it "has no place in this campaign."
Clinton appeared to reference the Kennedy killing at the end of the 1968 Democratic presidential race to show that previous Democratic nominating contests have stretched well into June.
But referring to political assassinations is fraught with sensitivity, especially for supporters of Obama, who accepted Secret Service protection last year, long before the time it is offered to most presidential candidates, because of unspecified threats.
Clinton quickly launched a damage control effort, saying that the Kennedys had been in her thoughts, after Senator Edward Kennedy was diagnosed with brain cancer this week.
"I regret that if my referencing that moment of trauma for our entire nation, and particularly for the Kennedy family was in any way offensive. I certainly had no intention of that, whatsoever," Clinton said.
"My view is that we have to look to the past and to our leaders who have inspired us and give us a lot to live up to, and I'm honored to hold Senator Kennedy's seat in the United States Senate from the state of New York."
Sometimes it's best to recognise when it's time to pack up. Hillary who has fought a great contest, is obviously not capable of seeing that she is now doing her Party, herself and her country damage by carrying on. Shut up, Hillary. It's Over. You've lost. He's beaten you. OK.
UPDATE - Barack Obama is hoping that Bill Clinton will play a key role in healing the divisions in the Democratic Party, once the Illinois senator is finally selected as the presidential candidate. According to a senior Obama aide, "Bill Clinton will give permisison for Hillary supporters to come into our camp." (Sunday Times)