A White House aide says there's no misunderstanding what US President Donald Trump means when he says "only one thing will work" to rein in North Korea's nuclear and missile programs.
Budget director Mick Mulvaney told NBC that Trump's "clearly telegraphing, and this should not be news to anybody" that "military options are on the table. ... They absolutely are."
Trump says years of talking to the North and providing aid haven't worked.
But Democratic senator Chris Murphy wants Trump to "stop doing hurtful things to the country's national security, like telling the North Koreans that there is no diplomatic path for them to give up nuclear weapons".
Republican senator Ron Johnson said: "There is no viable military option. It would be horrific."
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The senators were on CNN.
