WASHINGTON (AP) -- In a day of ceremony and tribute, the casket carrying Justice Antonin Scalia will lie in repose at the Supreme Court where he spent nearly three decades as one of its most influential members.
Thousands of mourners — from the president and members of Congress to former justices and tourists — will pay their respects Friday as the casket rests in the court's Great Hall.
The justice's former law clerks will take turns standing vigil by their former boss throughout the day and night in a tradition most recently observed after the 2005 death of former Chief Justice William Rehnquist.
Court officials said Scalia's casket will arrive Friday morning. Supreme Court police will carry it up the court steps, with former clerks following as honorary pallbearers.
The casket will be placed in the court's Great Hall on the Lincoln Catafalque, the platform on which President Abraham Lincoln's coffin rested in the Capitol rotunda in 1865. A 2007 portrait of Scalia by artist Nelson Shanks will be displayed nearby.
A private ceremony including family, friends and justices will take place at the court at 9:30 a.m. Scalia's casket will be on public view from 10:30 a.m. until 8 p.m.
President Barack Obama and first lady Michelle Obama planned to pay their respects at the court on Friday, while Vice President Joe Biden and his wife Jill Biden were to attend Scalia's funeral Mass on Saturday.
The funeral Mass open to family and friends will take place Saturday at 11 a.m. at the Basilica of the National Shrine of the Immaculate Conception in Washington. Burial plans have not been released.
In a departure from tradition, the court's current and former justices won't be lining the marble steps outside the court as the casket is carried through the main entrance. They will instead be waiting inside. Court spokeswoman Kathy Arberg did not explain the reason for the change.
Scalia's sudden death complicated an already tumultuous election year. Senate Majority Leader Mitch McConnell says a replacement should not be named until the next president takes office. Obama pledged to pick a replacement "in due time" and challenged Republicans to hold a vote on his nominee.
Scalia was found dead on Saturday in his room at a remote Texas hunting resort. The 79-year-old jurist was appointed to the court in 1986 by President Ronald Reagan.
He is survived by his wife, Maureen, nine children and 36 grandchildren.