The battle is on as to which president is responsible for Russian meddling in the 2016 election. This week while addressing Polish leaders oversees, President Trump pointed the finger at President Obama for doing nothing about it. But Obama defenders say this president, while still a candidate, was aiding Russia's meddling.  Bottom line: President Obama was in charge at the time and presumably did nothing believing it wasn't necessary because Hillary Clinton was going to win, anyway.  Wrong calculation.