A recent Harvard-Harris poll found that 62 percent of Americans believe that Russia would not have invaded Ukraine if Donald Trump were still in the Oval Office. As former senior intelligence officials under President Trump, we agree with that view. Russia invaded Georgia in 2008 when George W. Bush was president. Russia took Crimea in 2014 when Barack Obama was president. Russia has now invaded Ukraine with Joe Biden as president. However, when Donald Trump was president, Russia did not seize territory from any of its neighbors......