John Bolton, a former national security adviser during President Donald Trump 's first administration and now a vocal Trump critic, warned during a CNN appearance on Friday that Russian President Vladimir Putin "knows how to play Trump," which could result in "dangerous" terms for an end-of-war deal with Ukraine.

Trump declared dozens of times that he would have a deal in place between Ukraine and Russia on his first day in office, if not before. His advisers now concede the war will take months to resolve. "I really would like to be able to meet with President Putin soon to get that war ended,