I will show a couple excerpts but you have to read the whole thing. It isn't long but it goes right to the heart of the issue.
Barack Obama's willingness to meet with the leaders of rogue states such as Iran and North Korea "without preconditions" is a naive and dangerous approach to dealing with the hard men who run pariah states. It will be an important and legitimate issue for policy debate during the remainder of the presidential campaign.
Consider his facile observations about President Kennedy's first meeting with Soviet Premier Nikita Khrushchev, in Vienna in 1961. Obama saw it as a meeting that helped win the Cold War, when in fact it was an embarrassment for the American side. The inexperienced Kennedy performed so poorly that Khrushchev may well have been encouraged to position Soviet missiles in Cuba in 1962, thus precipitating one of the Cold War's most dangerous crises.
Such realities should cause Obama to become more circumspect, minimizing his off-the-cuff observations about history, grand strategy and diplomacy. In fact, he has done exactly the opposite, exhibiting so many gaps in his knowledge and understanding of world affairs that they have not yet received the attention they deserve. He consistently reveals failings in foreign policy that are far more serious than even his critics had previously imagined.
Read it all...
Obama doesn't have a clue and it isn't just John Bolton saying it. Throughout the last year, many prominent Democratic politicians have said the same thing.
The same politicians that now, because they have the (D) next to their name, will rally behind Obama, like Hillary Clinton is planning on doing, proving, once and for all, in a spectacular fashion, that the party means more to them than the country or the safety of the country ever will.
This is why the Democrats have and always will have the stigma of being "weak on National Security".
More examples via Gateway Pundit.