connection to Yellowstone National Park at Livingston, Montana. On November 14, 1971, Amtrak formally named this service the North Coast Hiawatha and extended it to Chicago. It retained its tri-weekly schedule and joint operation with the Empire Builder west of Spokane. On the four days of the week that the North Coast Hiawatha did not run, its route between Chicago and Minneapolis was served by a train on the same schedule. This Chicago–Minneapolis train was initially named Hiawatha, then Twin Cities Hiawatha (starting January 16, 1972), and, finally, Hiawatha again (starting October 29, 1972). This name remained until the North Coast Hiawatha went daily on May 19, 1974. The joint operation with the Empire Builder ended on June 11, 1973, when Amtrak extended the North Coast Hiawatha to Seattle using the GN's route via Stevens Pass and the Cascade Tunnel, which included stops at the northern Washington cities of Wenatchee and Everett. The train remained on a tri-weekly schedule west of Minneapolis. For the summer of 1974, Amtrak added a second train, the Expo '74 (named for Expo '74 being held in Spokane), to the Seattle–Spokane segment. The train operated daily between Chicago and Seattle during the summers of 1974 and 1977, and during certain holiday seasons, such as December 12, 1975–January 12, 1976. Otherwise, it remained tri-weekly west of Minneapolis. In early 1976, the North Coast Hiawatha was threatened with discontinuance, along with the Pacific International and the three daily Portland–Seattle trains, after the Ford Administration proposed budget cuts. Several members of Congress protested the proposed cuts, including Representative Max Baucus (D–Montana), and Senators Warren Magnuson (D–Washington) and Bob Packwood (R–Oregon). Congress eventually approved a budget for Amtrak $62 million above the administration's request, saving all three services. In October 1976, Amtrak announced that the North Coast Hiawatha would be the second train (after the Empire Builder) to receive the new bi-level Superliner coaches, then on order from Pullman Standard. The train was ultimately cancelled before the Superliners entered long-distance service. In May 1977, Amtrak added seven hours to the schedule, increasing it to 52 hours 30 minutes. The change was caused by speed restrictions on Amtrak's new EMD SDP40F diesel locomotives after they suffered a rash of derailments. In September 1977, Amtrak brought back the Twin Cities Hiawatha name for the train's four-day-per-week Chicago–Minneapolis service. In November, Amtrak reduced the running time to 46 hours 40 minutes, after