(CNN) — Hillary Clinton compares herself to a famous - albeit fictional - Philadelphia resident and challenges Barack Obama to a "bowl off" in the latest CNN=Politics Daily.
Also, CNN's Dana Bash has a sit down interview with John McCain and reports on the Arizona senator's trip back to his high school.
CNN Senior Political Analyst Bill Schneider reports on House Speaker Nancy Pelosi's latest comments on the role of superdelegates and takes a look back at how they have influenced nomination fights years past.
CNN's Carol Costello takes a look at Chelsea Clinton's role on the campaign trail and her refusal to discuss the Monica Lewinsky scandal.
Finally, CNN Election Express Producer Josh Rubin takes an inside look at the issues facing Pennsylvania voters.
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– CNN Ticker Producer Alexander Mooney