[2] He earned a Heywood Broun Award for his coverage and was nominated for a Pulitzer Prize in Local Reporting in 1949 by the managing editor of the Seattle Times.
At another time, his reporting engendered so much response that 21 year-old Joe Maish's death sentence was commuted to life imprisonment two minutes before he was to hang.
He also served on the Public Works Committee with oversight over the United States Army Corps of Engineers, Bureau of Reclamation, and the Atomic Energy Commission.
The nationalists, identified as Lolita Lebrón, Rafael Cancel Miranda, Andres Figueroa Cordero, and Irving Flores Rodríguez, unfurled a Puerto Rican flag and began shooting at the 240 Representatives, who were debating an immigration bill.
He was on the phone quickly after with the Seattle Times during the ruckus to give them the scoop, which later Speaker of the House Tip O'Neill recorded in a book of memoirs.
At least 11 U.S. Army service members were on board, and Rep. Magnuson recommended that Private First Class Raymond C. Maruschak receive the Soldier's Medal, and credited him with saving many lives that day.
On May 22, 1959, Magnuson voted for an addition to the public works bill in an Appropriations subcommittee for $724,000 to start the Greater Wenatchee reclamation project.
"On January 21, 1960, the Bellingham Labor News said that as a member of the Public Works Committee, Magnuson sponsored a resolution to authorize the U.S. Army Corps of Engineers to review flood control studies in western Washington.