Explain this - Obama 04 has a bone to pick with Obama 08

[sunonmars]

He's going to be battered over the head with this flip floppery

http://www.washingtontimes.com/apps/pbcs.dll/article?AID=/20080201/NATION/43529865/0/FRONTPAGE

Barack Obama, the senatorial candidate of 2004, might have a bone to pick with Barack Obama, the presidential candidate of 2008.

Videotapes of debates and speeches that were obtained by The Washington Times show that Mr. Obama took positions during his Senate campaign on nearly a half-dozen issues ranging from the Cuba embargo to health care for illegal aliens that conflict with statements that he has made during his run for the White House.

http://www.nytimes.com/2008/02/03/us/politics/03exelon.html?_r=3&hp&oref=slogin&oref=slogin&oref=slogin

Mr. Obama scolded Exelon and federal regulators for inaction and introduced a bill to require all plant owners to notify state and local authorities immediately of even small leaks. He has boasted of it on the campaign trail, telling a crowd in Iowa in December that it was “the only nuclear legislation that I’ve passed.”

“I just did that last year,” he said, to murmurs of approval.

A close look at the path his legislation took tells a very different story. While he initially fought to advance his bill, even holding up a presidential nomination to try to force a hearing on it, Mr. Obama eventually rewrote it to reflect changes sought by Senate Republicans, Exelon and nuclear regulators. The new bill removed language mandating prompt reporting and simply offered guidance to regulators, whom it charged with addressing the issue of unreported leaks.