Senator Marco Rubio Cancels Philly Book Event Amid VP Speculation

Republican Senator Marco Rubio (FL) canceled a book event scheduled for Wednesday night at the National Constitution Center. Tickets to the Rubio event at the Constitution Center—which was supposed to include a conversation with Talk Radio 1210’s Dom Giordano—had sold-out. Rubio—rumored to be Mitt Romney’s pick as a running mate for the upcoming presidential election—also canceled a Tuesday appearance on the Daily Show with Jon Stewart. Mitt Romney said on Tuesday that Rubio is being vetted by his team to determine if he’s a fit to be the vice presidential candidate. [Philly Gossip]