Feb 13 (Reuters) - The following were the top stories in The Wall Street Journal on Wednesday. Reuters has not verified these stories and does not vouch for their accuracy.
* Barack Obama notched three more big victories over Hillary Clinton in Democratic presidential-nominating contests in the nation's capital and next-door Virginia and Maryland. John McCain won the Republican primaries, but many conservatives continued to protest the party's presumptive nominee by voting for his remaining rival, Mike Huckabee.
* The writers' union voted overwhelmingly to end the three-month walkout that has crippled the entertainment industry. Members of the Writers Guild of America are expected to be back at work Wednesday.
* Delphi Corp's DPHIQ.PK $6.1 billion financing plan to exit bankruptcy was in jeopardy, as lenders tried to cope with credit markets that remain virtually shut.
* Michigan announced a halt to student loans, and other states could soon follow, as the securities auctions that fund borrowers ranging from municipalities to student-loan authorities have gone into a deep freeze.
* Delta Air Lines Inc (DAL.N) Chief Executive Officer Richard Anderson told the airline's board that he will waive millions of dollars in compensation to which he would be entitled in the event of a merger.
* Morgan Stanley (MS.N) executive Jerker Johansson is expected to be named chief executive of UBS AG's UBSN.VX investment-banking operation, running securities sales, trading and merger advisory businesses at the Swiss bank, according to people familiar with the matter.
* Google Inc's (GOOG.O) enthusiasm has waned in recent days for a potential advertising tie-up that could help Yahoo Inc YHOO.O try to thwart Microsoft Corp's (MSFT.O) unsolicited takeover offer, people familiar with the matter say.
* A Legg Mason (LM.N) unit raised its stake in Countrywide Financial Corp CFC.N to 14.9 percent of the shares outstanding, signaling confidence in the mortgage lender's prospects.
* In a sign of the possible politicization of the Beijing Olympics, film director Steven Spielberg withdrew from his role as an artistic adviser to the Games' opening and closing ceremonies, citing China's connection to the government in Sudan and the controversy over Darfur.
* The Senate passed a White House-backed surveillance measure that grants legal immunity to companies alleged to have helped the government's warrantless spying program.