"If President Trump meets with Kim Jong Un and receives a deal that truly lives up to these principles, he will have made the world a safer place… But if he tries to reach a deal with Kim Jong-un just for the sake of reaching a deal and the agreement fails to live up to principles we laid out, he will have been bested at negotiating table yet again," Senate majority leader Chuck Schumer told reporters, as quoted by CNN broadcaster.
Schumer expressed hope that next week's high-level summit with North Korea would be successful, adding that Trump had to secure a good deal.
"The President has broad discretion under existing sanctions law against North Korea. But if he uses that discretion to implement a ham-fisted deal, he should be ready for Democrats and hopefully Republicans to push back," the Democrats' leader said.
READ MORE: White House Announces Exact Time of Trump, Kim First Meeting
The long-standing tensions on the Korean Peninsula have calmed down in 2018 when Kim Jong-un announced his willingness to denuclearize the country, met with South Korean President Moon Jae-in and expressed his readiness to hold talks with Trump. The Kim-Trump meeting is scheduled for June 12 in Singapore.