After weeks of waiting, the Pennsylvania primary is now hours away, and there is no shortage of forecasts and last-minute polling on the blogs.

Illinois Sen. Barack ObamaBarack ObamaOvernight Energy: Trump set to propose EPA, energy spending cuts Watchdog group sues for ex-lobbyist ethics waivers CNN's Zakaria: ‘Obama could have given’ Trump’s Saudi speech MORE (D-Ill.) prediction of a