washington president donald trump visit supreme court thursday first time since take office attend ceremony neil gorsuch justice appoint court mull block ban travelers six muslim-majority countries president first lady melania trump present marble-clad courthouse investiture ceremony formally welcome gorsuch top u.s. court gorsuch confirm senate swear justice april author first rule last week debt-collection case trump sit near front ornate burgundy-draped courtroom chief justice john roberts offer first lady warm welcome open remark president sit quietly roberts administer judicial oath gorsuch join crowd applaud gorsuch smile broadly appoint gorsuch trump restore court 5-4 conservative majority trump speak event notable figure ceremony include several members senate judiciary committee attorneys general george w. bush presidency include john ashcroft alberto gonzales also attend kenneth starr former independent counsel investigate bill clinton presidency special counsel examine whether trump presidential campaign team collude russia 2016 election investigate trump possible obstruction justice trump travel ban justices block low court decide whether allow travel ban go effect justices set weigh whether trump election campaign rhetoric use evidence march order intend discriminate muslims violation constitution trump 2016 presidential campaign call total complete shutdown muslims enter unite state court currently consider emergency request trump administration seek put travel ban effect litigation continue federal judge maryland hawaii block trump 90-day ban travelers libya iran somalia sudan syria yemen hawaii judge also block 120-day ban refugees enter unite state injunctions block ban uphold appeal trump able make appointment gorsuch republican-led senate last year refuse consider former president barack obama nominee court merrick garland trump visit u.s. supreme court justices weigh travel ban