Email from Julian Castro campaign:

Tonight -- live on Rachel Maddow -- I’ll discuss my immigration plan, which drove the conversation in the Democratic debates. I hope you’ll take a moment to read about it -- and join me and the other top Democratic candidates in supporting it. 

My grandma came to America when she was just seven years old after being separated from her dying mother.

I watched the pain of never getting to say goodbye haunt her even as a seventy-year-old woman.

I see her image in the children at our borders today -- children as young as infants ripped from their parents, locked in cages, and even “lost” in the system. ... 

My proposal is bold. But it’s what our country needs.

People First Immigration centers around 3 key principles:

-No more family separation or children in cages -- period.

-Bring DREAMers and other undocumented folks out of the shadows -- full stop.

-Address the root causes of migrant crises -- this is key.