@CNN: Republican Sen. Lamar Alexander announces he will not seek re-election in 2020 https://t.co/bImYyV0bs1 https://t.co/xFxyMxRDUo

@CNN: Republican Sen. Lamar Alexander announces he will not seek re-election in 2020 https://t.co/bImYyV0bs1 https://t.co/xFxyMxRDUo