What is Hillary Trying to Accomplish?

Could someone please tell me what Hillary is trying to accomplish at this point in the Democratic primaries?

She cannot win. Period. Check out the NY Times Interactive Delegate Tracker. Even if she won every remaining state by a 55/45 percentage (which is the best she's managed in any primary in the last two months), she'd need to get the support of three-quarters of the remaining superdelegates in order to earn the nomination. The problem with this is that she won't win the remaining states by a ten-point margin; Clinton has been polling neck-and-neck with Obama for weeks, so there's no way for her close that margin.

In order to win, she'd need superdelegates to cast their ballot contrary to the popular election, which no one thinks is going to happen. In fact, she continues to lose superdelegates to Obama. Since Tuesday's primaries, Obama has gained six superdelegates while Clinton picked up one and lost another.

Hillary is running out of money. She's loaned her campaign $11.4M this year, and her campaign still has $10.3 M in unpaid bills as of March 31.

Respected pundits on virtually every media outlet have essentially or explicitly announced that the race is over and Obama has won, following her narrow win in Indiana and substantial defeat in North Carolina.

Even Clinton friends and supporters are calling for an end to this painful situation. George Stephanopoulos, George McGovern, Bill Richardson, Robert Reich and other Clinton loyalists have shifted their allegiance or called on Hillary to pull out of the race.

I understand she has the right to continue to run, but given she cannot win the nomination, what is her motivation to do so? It is clear Hillary's continued presence in the race is doing damage to Obama's and her party's chances to win in the general election:

• She is introducing race into the election, which cannot be good for her party or the country at large. This isn't the first time Hillary or Bill has played the race card, and it gets uglier every time they do it. In an interview today, she said, "Sen. Obama's support among working, hard-working Americans, white Americans, is weakening again" and "whites in both states who had not completed college were supporting me." (The deluded woman told USA Today she didn't believe her emphasis on white voters could be interpreted as racially divisive because, "These are the people you have to win if you're a Democrat in sufficient numbers to actually win the election. Everybody knows that.")
  
  
• She continues to push for the Michigan and Florida primaries to count, even though she agreed they should not, even though she was the only remaining candidate on the ballot in one of those states, and even though no campaigning was done in either state by either candidate. If she dropped out, the rift with Dems in these states could be healed since these states' delegates could be seated at the convention. But instead, Hillary continues to push for a retroactive change in the rules, raising concerns this issue could cause a widening of the rift within the party. (If she really cared about including the Democratic voters in those states, Hillary would acknowledge the obvious, drop out, and invite those delegates to play a role at the convention to anoint Obama.)
  
  
• On top of those issues, Hillary is continuing to attack Obama and weaken him for the general election while McCain enjoys criticism-free months. She continues to raise funds that could go to supporting Obama in the general election, and she's forcing Obama to spend his campaign funds running against her rather than against McCain.

The whole mess is just unbelievable. An unpopular GOP president, a horrible war, a weakening economy--this should be an easy election for the Democrats, and right now the candidate who cannot win is threatening to undermine the Democrat who can.

A friend of mine tonight said he believes Hillary is working for the Republicans. I can't see how this is possible, but between her ads that play on voters' fears of terrorism, her mailers featuring pro-gun stands, and her actions in the race, it's an almost believable contention.

Which brings me back to my original question: Could someone please tell me what Hillary is trying to accomplish at this point in the election? (And really, shouldn't the ability to grasp reality be one of the primary qualities we want in a presidential candidate?)