Over the last century, Minnesota Republicans have flipped a U.S. House seat in just one of the 12 cycles when Democrats netted 20+ seats across the country.
No incumbent U.S. Senator has lost a primary in the First State and 33 of 35 incumbents have won renomination over the last century.
Nine state delegations currently have junior senators who are older than its senior senator.
This decade has found the Arizona GOP in the midst of its most heavily contested nomination battles for the office in state history.
Only one previous senator in history has been elected to the chamber without a majority of the vote three times.
The nation has seen an unusually large number of cycles of late during which only one major party flips U.S. Senate seats.
A record four women were nominated by major parties to the U.S. House from New Mexico this cycle; female nominees have won 41 percent of such races in state history.
In only five cycles since statehood have two parties flipped U.S. House seats in the Gopher State.
Women have been nominated to the U.S. House by major parties in Virginia for 14 consecutive cycles including winning a record-setting seven nominations in 2018.
The 4th CD race is the 10th rematch among major party nominees for the office in state history; each of the previous nine losers were unsuccessful in the rematch.