U.S. and North Korea resume talks on Summit; Trump: Summit could be back on, "It could even be the 12th"; GOP's McConnell: No surprises in briefing on Trump's spy claim; CNN: Russian Oligarch met with Trump's lawyer during transition; CNN attempts to question Russian who met with Cohen; Trump repeats unproven claim that FBI placed "spy" in campaign; Dems: Briefings yielded "no evidence" for Trump's spy claim; Senior Admin Official: "Way more optimistic" on Trump-Kim Summit via Knit