President Donald Trump lashed out at the Supreme Court on Thursday after the high court ruled in a 5-4 decision that his administration cannot carry out its plan to shut down the Deferred Action for Childhood Arrivals program.

The Obama-era immigration program has allowed nearly 800,000 young people, known as Dreamers, to remain in the U.S. and avoid deportation.

“These horrible & politically charged decisions coming out of the Supreme Court are shotgun blasts into the face of people that are proud to call themselves Republicans or Conservatives,” Trump tweeted Thursday. “We need more Justices or we will lose our 2nd. Amendment & everything else. Vote Trump 2020!”

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