John F. Kennedy may have been a very smart man. I don't know. However, the fact that he invited some Nobel Prize Laureates to dinner doesn't have much to do with how much of an intellectual he is. Having said that, President Obama started something called the White House Science Fair, where kids come to the White House to present their science projects. He seems to be somewhat of an intellectual as well, but again, you can't really base it on these things.
I firmly believe that politicians these days spend more time debating matters that would have never been an issue years in the time of President Kennedy. The Executive Chief in 1962 not only had more time to focus on intellectual prowess than the president and relative politicians do today, but I feel it is partially the fault of the people that it is now this way.
Current politicians lack the charisma of the Kennedy family. I don't believe our politicians would be able to conduct themselves with as much grace, tact, and intelligence to be able to converse with Nobel Laureates at a dinner or even in "casual" conversation. It seems that there is too much self-interest among today's politicians.
From politicians who refuse to make policies based on sound science, to people in office who create frivolous laws for their own personal gain or to support their discriminatory ideologies, to individuals who cannot even string a coherent sentence together, today's politicians are a product of the school system their predecessors designed to create compliant citizens without the capability of critical thinking. Some politicians are actually so intellectually bankrupt that they dare base their work on outdated science, deliberate misrepresentation of facts and even religion.