>>Trump travel ban: What you need to know before the court showdown
The restraining order was put into place on Friday after Washington requested the immigration ban be halted because it was damaging the state.
A federal district judge ruled that Washington, along with Minnesota who joined in on the suit, had standing to request the TRO, and it was granted.
Starting at 3 p.m. PT (6 p.m. ET), you can click here for the live stream of the arguments.
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