The Democrats are getting serious. Barack Obama has announced that Oprah Winfrey would begin campaigning with him in some key states.
Escalating the tension, Barbra Streisand has come out publicly in support of Hillary Clinton (no word yet if it is the Mecha Streisand)
John McCain delivered the Republican response
EDITED TO ADD -- From commenter Rodak, Obama's new slogan in New Hampshire -- "WINFREY, OR DIE! "