Didn’t make it clear. If he is to show up and address the Congress he must be invited by the Speaker. He hasn’t been invited this year, and to be even more clear he isn’t even required to show up to deliver it. On the need to show up Pelosi reminded him
The Constitution calls for the President to “from time to time give to the Congress Information of the State of the Union.” During the 19th Century and up until the presidency of Woodrow Wilson, these annual State of the Union messages were delivered to Congress in writing. And since the start of modern budgeting in Fiscal Year 1977, a State of the Union address has never been delivered during a government shutdown.