The Scottish Government has also intervened in the case to seek a vote for MSPs on Article 50.
His two best showings came in back-to-back starts when he was T19 at the Tucson Conquistadores Classic and T20 with partner Joey Sindelar at the Bass Pro Shops Legends of Golf.
The inauguration marks the culmination of the presidential transition which began with Trump’s election on 8 November.
The president-elect has previously pledged to use his first 100 days in office to re-negotiate trade and climate change deals.
Prime Minister Theresa May has said she wants to trigger Article 50 by the end of March.
The legal challenge is being made because she is desperate not to have her objectives for the upcoming Brexit negotiations dissected by MPs, even though a majority are expected to vote for Article 50.