When Gov. Charlie Baker took office in 2015, he highlighted one big idea for public education.

“While traditional public schools will always be the backbone of our education, we need more high-performing public charter schools, especially in under-performing school districts,” Baker said in his inaugural address.

So when the prospect of more charter schools made the ballot in 2016, Baker went to bat for it. Baker aides Jim Conroy and Will Keyser ran the 2016 ballot campaign — the most expensive in state history. The governor himself spoke at rallies, and starred in a ubiquitous TV ad, asking people to vote yes.

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