From KCRW in Santa Monica and PRI, Public Radio International, this is To the Point.

Shades of the future, as Democrats look to the past.

Hello again, I'm Arminolny, and this is To the Point. In New York, crowds lined up around the block this week for Hillary Clinton's

first signing of her new book. What happened? In Washington, a gaggle of potential presidential

hopefuls lined up behind Bernie Sanders and his new proposal of Medicare for all. Has Sanders discovered

the issue for 2018 and 2020?

Does Clinton still have a role to play?

Democrats don't want to relive last year's primaries,

but divisions between grassroots activists and party regulars are still a real impediment to party unity.

Later on today's talking point,

the existential threat of big tech. First, here's the news.

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Hello again, Mormon, I'll be back with To The Point.

Big Tech inherited values from the 1960s, but Google, Amazon, Facebook, and Apple have futuristic ambitions.

They have a very urgent goal, which is that they want to complete the merger of man and machine.

So what could go wrong? We'll talk with reporter and author Franklin IV at the end of our program.

Our main topic today is the split between grassroots Democrats and party regulars with Hillary Clinton and Bernie Sanders back in the spotlight this week.

First is news update. In the aftermath of last night's White House dinner, Democratic majority

leaders, minority leaders, Chuck Schumer and Nancy Pelosi, said the president agreed to

protect young undocumented immigrants from his rescission of DACA.

...