Primaries and a special election were held in four states on Tuesday in the biggest day of voting so far in the 2010 election cycle. In Pennsylvania’s Democratic primary, thirty-year Senate veteran Arlen Specter lost his bid for reelection to Congress member Joe Sestak. In Kentucky, Tea Party candidate Rand Paul easily beat Secretary of State Trey Grayson in the state’s Republican race. In Arkansas, Democratic incumbent Blanche Lincoln is headed into a runoff vote against Lieutenant Governor Bill Halter. In Oregon, Democratic Senator Ron Wyden easily won his party’s nomination to run for a third term. Meanwhile, in Pennsylvania, Democratic candidate Mark Critz won a special election to fill the congressional seat left vacant by the death of former Congress member John Murtha. Critz previously worked as Murtha’s aide.