Because Trump watches Fox News, Fox has an oversized influence on our foreign policy.
So it matters that Trump is being told that war with Iran, for the first time in history, won't mean people being killed.

The idiotic bullsh*t isn't much better in the rest of the conservative media.

Trump bizarrely chickens out of responding to a direct attack from Iran, a piece for Business Insider charged.

“President Donald Trump bizarrely dismissed Iran shooting down a US drone as a ‘mistake’—after the country admitted to it and declared itself ready for war—in what looks like a bold but counterfactual move to avoid war,” writes Alex Lockie. “Indeed, Trump has talked a big game on Iran, but according to multiple and persistent reports, he has pushed his officials to take a softer tone on Iran to avoid war…. Secretary of State Mike Pompeo said on CBS’s Face the Nation on Sunday morning that the U.S. would endeavor to ‘restore deterrence’ toward Iran, presumably by letting them know a harsh response awaited any further aggression.”
...
In the Wall Street Journal Thursday, Reuel Marc Gerecht and Ray Takeyh wrote a piece headlined “America Can Face Down a Fragile Iran.”

“The regime is dangerous, but it isn’t nearly strong enough to withstand a prolonged confrontation,” they write. “The regime is in a politically precarious position… [Iran’s] essential weakness means it can’t muster sufficient strength for a prolonged conflict with a determined superpower. The mullahs’ clenched fists, slogans of martyrdom, and staged demonstrations shouldn’t be confused with real power. ”

Gerecht, a senior fellow for the Foundation for Defense of Democracies, distinguished himself in a November 2002 op-ed he penned titled, “An Iraq War Won’t Destabilize the Mideast.”

Meanwhile the so-called liberal media is assuring us that war with Iran will be a cake-walk.

American talking-head Bret Stephens, who advocated over a decade ago for war with Iraq, now stridently argues without a hint of irony that, “If Iran won’t change its behavior, we should sink its navy.”

“Nobody wants a war with Iran. But not wanting a war does not mean remaining supine in the face of its outrages,” writes Stephens. “We sank Iran’s navy before. Tehran should be put on notice that we are prepared and able to do it again.”

If that sounds crazy, consider Sen. Tom Cotton’s interview Sunday with CBS News’ Face the Nation, where he argued that it would take just two strikes to “win a war with Iran.”

The neoliberal chickenhawks have decided that the best course of action is to insult Trump's manhood.

What had been a subject of debate was now USA Today accusing Trump of “not following through.” As concerning as blundering into a huge war in the Middle East had been, the new talking point was Trump showing weakness, and per Kori Schake of the Atlantic, damaging “America’s credibility.”
... NBC News was quick to accuse Trump of “indecision” and declared it would “embolden Iran.”

CNN’s Samantha Vinograd accused Trump of not being able to “make up his mind,” and suggested that he’s “blown America’s credibility” by not attacking Iran.

No wonder they hate Tulsi so much.

In related news 22% of the world thinks the U.S. is a bad influence.