Back home in the U.S. after a fruitless summit with Kim Jong-un,... President Donald Trump again emphasized that North Korea could become a great economic power... if the regime lays down its nuclear weapons.br Speaking at a conservative political conference Saturday, local time,... Trump said the North will have a bright economic future if they sign a deal,... but no economic future at all with a nuclear arsenal.br Trump had met North Korean leader Kim Jong-un for a summit in Vietnam earlier this week,... which came to a close with no agreement.br He said the U.S. would only sign a deal that works, and again gave himself credit... saying North Korea has stopped conducting missile and nuclear tests.