Comment: It is actually "new and significant", not "old and pathetic" that a foreign nation would directly interfere to impact our Presidential election.  While the actual "impact" can be debated, the action itself and the intent are, at least according to the CIA and the FBI, very clear.

Certainly we, in the past, have interfered directly in the democratic process in other nations...Probably direct involvement in the assassination of Chile's elected President Salvadore Allende and CIA attempts on the life of Fidel Castro are the most egregious examples.  However, we like to be the "messer"....not the "messee".  

I'm not sure that President Obama's "hey, quit doing that" will be particularly effective.  Mr. Putin is the dictator (albeit elected) of one of the strongest nations on earth, a demonstrated bully, and an extremely aggressive leader.  I'm not sure a Neville Chamberlain approach will be adequate....from Obama or from Trump.   These are very dangerous times....