Hillary Clinton had previously backpedaled on driver's licenses for undocumented immigrants in 2008 and supported returning unaccompanied minors who crossed the border in 2014 back to Central America.

Jessica Kourkounis / Getty Images

This angered immigration activists and lowered expectations for for how much she would support their issues during her 2016 run. Then a shocking thing happened.

Mark Ralston / AFP / Getty Images

At a high school library, only 10 months after she said the children should be sent back, Clinton presented a broadly liberal vision on immigration, pledging to go further than Obama had through executive actions.

John Locher / AP

The Clinton campaign made a calculation that it would need to run more progressive on certain issues in the current climate in Democratic politics — to gain support, sure, but also to lessen damaging protests.

Mark Ralston / AFP / Getty Images

We talked to Astrid Silva, a DREAMer activist who walked into the room skeptical, but left wooed by Clinton's message, and would eventually endorse her.

Ethan Miller / Getty Images

Listen to this week's episode to hear how it happened, and subscribe on iTunes for more from No One Knows Anything.