Insiders expect the U.S. Senate race between Mehmet Oz and John Fetterman to be one of the most expensive ever in the state in terms of political advertising. A survey of various political advertisers found that Democratic and Republican organizations have already booked at least 67-million-dollars in advertising spots for the November election. Political analysts think ads in Oz-Fetterman race could rival the 164-million dollars that Senator Pat Toomey spent in 2016.