Former president Obama just a rare personal message to Marjory Stoneman Douglas High School students calling them smart and fearless, promising them we have got your back.

“Young people have helped lead all our great movements. How inspiring to see it again in so many smart, fearless students standing up for their right to be safe; marching and organizing to remake the world as it should be. We’ve been waiting for you. And we’ve got your backs,” Barack Obama tweeted.

Earlier, Michelle Obama tweeted she was “in total awe” and The former first couple were “behind [them] every step of the way.”

Former Democratic presidential nominee Hillary Clinton also defended the high school shooting survivors on Twitter on Wednesday, saying they have “shown so much courage in standing up for the truth” in the face of conspiracy theories that some of them are in fact “crisis actors.”

Students of the Marjory Stoneman Douglas High School have emerged as strong advocates for gun control following the attack.

Some of students have traveled to Florida’s state capitol to encourage lawmakers to take up gun control reform, and many are also planning a march later this year in Washington, D.C., to demand action on gun violence.

The shooting survivors also took center stage at a CNN town hall Wednesday, questioning lawmakers on the future of gun control legislation and pushing them to refuse future donations from the National Rifle Association.

Obama pushed for stricter gun control laws during his administration, but Congress blocked Obama’s call for new gun laws after the Sandy Hook Elementary School mass shooting.