What Message is the Scrapping of the Iran Nuclear Deal Sending to North Korea?

President Trump is as expected getting bashed for pulling out of the Iran nuclear deal with claims that it will impact his ability to negotiate with Kim Jong-un:

President Donald Trump’s withdrawal from the Iran nuclear deal is a major setback to US negotiating credibility and will complicate efforts to reach an agreement with Pyongyang over its own more advanced weapons programme, analysts say.

Trump is set to hold a much-anticipated and unprecedented summit with North Korean leader Kim Jong-un in the coming weeks to negotiate over Pyongyang’s arsenal, after it last year carried out by far its most powerful nuclear test to date and launched missiles capable of reaching the U.S. mainland.

But the US president Tuesday pulled Washington out of the 2015 accord with Teheran, pouring scorn on the “disastrous” agreement and describing it an “embarrassment” to the United States ― although European signatories and the IAEA say Iran has complied with its obligations.

Antony Blinken, who was deputy secretary of state under Barack Obama, said the White House move “makes getting to yes with North Korea that much more challenging”.

“Why would Kim … believe any commitments President Trump makes when he arbitrarily tears up an agreement with which the other party is complying?” he asked on Twitter.  [Korea Times]

You can read more at the link, but it can be argued that if the Obama administration thought the Iran nuclear deal was so great why did they not try and lobby the Senate to consent to the treaty as the Constitution requires?  Consent from the Senate would have made it much harder for the President to withdraw from the treaty.  This is what I will be looking for if President Trump is able to strike a deal with the North Koreans; will he try to get consent from the Senate?

As far as impacts to negotiating with Kim Jong-un, I think it is arguable that Trump is sending a message that North Korea will need to agree to denuclearize or there will not be a deal.