Democratic senator reveals 'people we care about most' are 'undocumented Americans' in US

Sen. Chris Murphy, D-Conn., said Wednesday that the Democratic Party's push for a path to citizenship in border legislation has failed the people they "care about most" in this country, "undocumented Americans."

MSNBC host Chris Hayes asked Murphy about the border security bill and said, rather than pushing for a path to citizenship in border legislation negotiations like the party has in the past, Democrats were using Ukraine funding. 

"Well, I mean, Chris, that’s been a failed play for 20 years. So you are right that that has been the...