It’s not too late for Republican Ken Buck to fumble this, but Colorado’s incumbent Democratic senator Michael Bennet has been remarkably consistent in his polling in October: 45, 45, 45, 45, 46.

There have been exceptions to the “incumbent rule” from time to time, but if Bennet remains at 45 percent in the final polls, I’ll have a hard time seeing him jumping to a majority on Election Day.

Also, in a year and political environment like this one , how many genuinely undecided but certain-to-vote voters are still out there?