Russian Hacking of the 2016 Election
We are creeping ever closer to actual evidence that there was Russian ratfcking of the vote totals in the last election. Not long ago, people wouldn't even suggest that out loud. We were made vulnerable to something like this because of the interference by the Supreme Court in Bush v. Gore, by the curious goings-on in Ohio in 2004, by a relentless campaign to convince the country of an imaginary epidemic of voter fraud, and by a decade of voter suppression by any means necessary. The Russians wanted to undermine the confidence Americans had in their elections? We made it pretty damn easy to do that.
And of course Trump denies this interference, to levels that may signify obstruction of justice if not covering up outright collusion.