A group of students at Harvard's John F. Kennedy School of Government has reportedly launched a "Resistance School" to fight back against President Trump's agenda.

The "school" is a free four-week online course "that will sharpen the tools we need to fight back at the federal, state, and local levels," according to the group's website, as first reported by the Boston Globe.

"Our goal is to keep the embers of resistance alive through concrete learning, community engagement, and forward-looking action."

The co-founders of the training program told the Globe that the inspiration for the idea came from conversations following Trump's inauguration.

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"On November 8, we lost more than just the presidency," the group wrote on its website. "We lost yet more ground in the decades-long campaign against progressive values."

"Republicans now control the Senate, House, and more state legislatures than they have in almost 200 years. Those losses have emboldened the right to launch an all-out attack against our nation’s creed – that all are created equal."

The 11 creators have also compared themselves to "Dumbledore's Army," according to the Globe, referring to a group of students in the "Harry Potter" series that met secretly to stand up against the wizarding school's officials and learn spells to fight against dark magic.

“We just came together as a group of friends who care about something in common,” one of the Resistance School's founders told the Globe. “And it just turned into this thing.”

Tuesday the group's Twitter account tweeted at "Harry Potter" author J.K. Rowling, inviting her to join them.

.@jk_rowling, Harvard graduate students created our version of Dumbledore's Army, will you join us on Wednesday at https://t.co/jJA2ylxq8W? — Resistance School (@Resist_School) April 4, 2017

The website says the student-run organization is not affiliated officially with Harvard.

The group's Facebook page has more than 2,500 followers.