From NBC's Mark Murray
Barack Obama seems to be everywhere -- he was in Iowa for Sen. Tom Harkin's steak fry; he campaigned with virtually every Democratic candidate last fall; and as we mentioned earlier, he's heading to New Hampshire next month. And now this: NBC's "Tonight Show with Jay Leno" has announced that Obama will be on the program this Friday.
It's unlikely that Obama will reveal his 2008 intentions to Leno. But also remember that it was on the "Tonight Show" where Arnold Schwarzenegger first announced in 2003 that he was running for California governor.