Democratic presidential candidate Julían Castro said on Sunday that President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE is raising the profile of North Korean leader Kim Jong Un Kim Jong UnPelosi knocks Trump over refusal to commit to peaceful transfer of power Satellite images indicate North Korea preparing for massive military parade South Korea warns of underwater missile test launch by North Korea MORE without benefiting the U.S. or furthering any peace negotiations.

"It's worrisome that this president erratically sets up a meeting without the staff work being done. It seems like it's all for show, it's not substantive," Castro said on ABC's "This Week."

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"I am all for speaking with our adversaries, what's happened here is this president has raised the profile of a dictator like Kim Jong Un and now three times visited with him unsuccessfully because he’s doing it backward," he added.

The former secretary of Housing and Urban Development said North Korea has not even kept its word to the Trump administration to disclose its nuclear stockpile inventory.

Castro also Said Trump is hurting the U.S. and its allies by "growing the strength of a dictator."

Castro made the comments after Trump made history by becoming the first sitting U.S. president to cross into North Korea. Trump later announced that he and North Korean leader Kim Jong had agreed to restart stalled nuclear talks.