Cantor is the first Virginia Republican U.S. Representative to lose a renomination bid since 1888 after more than 160 successful attempts and the first to fail from either party in 48 years.
The two-term incumbent sets a new low water mark in primary voter support for a Republican U.S. Senator from South Carolina.
Cantor’s loss in the Virginia primary Tuesday is the first failed renomination bid after 54 successful attempts by sitting majority leaders of the nation’s lower legislative chamber.
No U.S. Senator in South Carolina history has inspired so many primary challengers as the two-term Republican incumbent this cycle.
Ernst is in a dead heat with Bruce Braley on the heels of setting the mark for the largest victory by a non-incumbent in a contested Iowa Republican U.S. Senate primary.
The 2014 Mississippi Republican U.S. Senate primary is one of just two in state history decided by less than one point by either party.
Despite facing a field that was tied for the largest in party history, Mike Rounds notched the sixth biggest victory margin in a contested Republican South Dakota U.S. Senate primary.
Only one out of 68 Democratic and Republican U.S. Senate primaries has gone to a special nominating convention in Hawkeye State history.
Pennsylvania has been governed by a “Tom” or “Thomas” for nearly 31 years collectively since statehood – more than any other name – and will add to that total in 2015.