WASHINGTON - Flags flew at half-staff in Washington, D.C. as the Senate bid farewell to Frank Lautenberg, the chamber's oldest member and its last World War II veteran.

Lautenberg was a liberal Democrat from Paterson who represented New Jersey for nearly three decades in the Senate. He died Monday at the age of 89 after suffering complications from viral pneumonia.

His casket arrived by motorcade at the Capitol at 1:30 p.m. to lie in repose in the Senate chamber atop the Lincoln Catafalque, a bier built for the coffin of President Abraham Lincoln.

Family members and senators paid their respects before the public was allowed to view the casket from the Senate gallery.

"It is a difficult day. Everyone in this country who believes in the American dream owes a debt of gratitude to Frank Lautenberg," said House Minority Leader Nancy Pelosi. "He lived it himself, he wanted it for everyone else."

Lautenberg will be buried Friday at Arlington National Cemetery. A funeral service was held Wednesday in Manhattan.