On Thursday's Very Last Word, msnbc's Ari Melber discussed Rep. Edward Markey's decision to run for Sen. John Kerry's Senate seat in Massachusetts, and what Markey's liberal views would mean for the Democratic caucus as a whole.
Very Last Word: Ed Markey could pull Dems left
On Thursday's Very Last Word, msnbc's Ari Melber discussed Rep. Edward Markey's decision to run for Sen.