Is Sen. Hillary Clinton, D-N.Y., staying in the race to get the vice presidential slot? George thinks so. Clinton vowed to fight on today, despite a growing chorus that says Sen. Barack Obama, D-Ill., has just about wrapped up the Democratic presidential nominaton. ABC's chief Washington correspondent George Stephanopoulos told Charles Gibson on "World News" that Clinton is staying in the race to negotiate a spot on the Democratic ticket in November. CHARLES GIBSON: George, she puts on a brave face in public. What's going on behind the scenes? GEORGE STEPHANOPOULOS: Well, I think it's fair to say ... that...