UPDATE, 5/19, 6:23a: Results: Obama: 0-4 (has now lost endorsed races in MA, NJ, VA, PA) AR Democrat US Senate primary: Incumbent Blanche Lincoln faces run-off against Bill Halter, since neither got 50% of the vote KY Republican US Senate primary: Tea Party-supported Rand Paul beat establishment-supported Trey Grayson PA Democrat US Senate primary: Joe […]