If you can remember back six years ago, you will recall being told that the Millennial generation — Americans under age 30 — were going to transform America politically and usher in an age of Democratic party domination. Those claims were not implausible if you made straight line extrapolations from the 2008 exit poll. That poll reported that under 30 voted 66 percent to 32 percent for President Obama. Those age 30 and over, one could calculate, voted for Obama by a margin of 50 percent to 49 percent. The only way for Republicans to stay competitive, one might have argued, was to pass a constitutional amendment barring anyone from voting who was born after 1980.

That was then and this is now. The Harvard Institute of Politics has just released its latest survey of Millennials, and reports that among those who say they would definitely vote this year, 51 percent would prefer a Republican-run Congress and 47 percent a Democratic-run Congress. In contrast, in 2010, the IOP poll of Millennials showed that 43 percent favored a Republican-run Congress and 55 percent a Democratic-run Congress.