Old footage of Trump calling for military action against Iran is being used to argue his current Iran stance is long-held, not driven by outside pressure.

• A 1987 clip shows Trump saying the U.S. should have sent troops into Iran over the hostage crisis.
• Critics argue the current Iran war is being fought for someone else's interests, not America's.
• Defenders counter that Trump's hawkish view on Iran goes back 40 years, well before any ties to Netanyahu.
• Marco Rubio is also cited as having made similar Iran statements a decade or more ago.

Outlook: The debate over whether U.S. involvement with Iran serves American interests will keep growing as the conflict continues.