Generational change at center of Massachusetts primary between Moulton, Markey

Voters in Massachusetts are at the polls on Tuesday for the state's primary elections -- a notable race: Rep. Seth Moulton's Democratic primary challenge to 80-year-old Sen. Ed Markey. Rolling Stone politics reporter Nikki Ramirez and Politico national politics reporter Alec Hernandez join to discuss.

Voters in Massachusetts are at the polls on Tuesday for the state's primary elections -- a notable race: Rep. Seth Moulton's Democratic primary challenge to 80-year-old Sen. Ed Markey. Rolling Stone politics reporter Nikki Ramirez and Politico national politics reporter Alec Hernandez join to discuss.