Edward Markey actually said...

"I believe that sanctions can offer a path for putting pressure on North Korea to return to negotiations aimed at denuclearizing the Korean peninsula."

"Preemptive attempts to kill Kim Jong-un, is there any time we should be able to talk about that?"

"However, at the time I also warned on the Senate floor that plans to use preemptive force against North Korea's nuclear arsenal or its leadership could drastically increase the risk of inadvertent nuc..."

"I think that was an example of how secondary sanctions against China and potentially against Chinese banks can be effective in changing Chinese policy towards the DPRK."