Different versions of the Alaska LNG project have been discussed in Alaska for decades, and there are longstanding questions about how it would pencil out.

Top political leaders welcomed Trump’s commitment to Alaska LNG, but state legislators have broadly been skeptical about the project.

Japan, South Korea and other countries want to partner with the United States in a "gigantic" natural gas pipeline in Alaska, U.S. President Donald Trump said on Tuesday, claiming they would invest "trillions of dollars each.