Senate GOP poised for largest turnover of the millennium due to Trump primaries, retirements

As MAGA frustration with old guard Republicans reaches a fever pitch, Senate Republicans are poised to face the single largest turnover in their recent history come January, due to a combination of death, retirements and President Donald Trump's getting involved.

Republicans currently have 53 seats in the upper chamber, but are essentially guaranteed to see at least eight in their ranks not return for the next Congress, marking what will be the largest instance of intra-party turnover in the past quarter-century.