The pure politics of this are spectacular for Democrats. Rep. Nancy Pelosi (D-Calif.), who sees her opportunity to return as Speaker, is now going to Wisconsin to directly take on Rep. Paul RyanPaul RyanWeek ahead: Trump's health pick takes the hot seat Trump criticizes controversial piece of House GOP tax plan Hispanic Dems warn Latinos will be hit hard by ObamaCare repeal MORE (R-Wis.), whose Medicare plan is a disaster for Republicans.

Pelosi goes on the attack in Wisconsin at a moment when Ryan and Republicans are on the defensive about Medicare, when Democrats have a good chance of regaining control of the Wisconsin Senate in upcoming recall votes, and when Democrats have a chance of winning a House special election in New York over the issue of Medicare. That special election should not even be competitive, but Democrats might now win it.

Pelosi's Wisconsin attack is perfectly aimed and perfectly timed.

Stay tuned for Democratic ads using Newt Gingrich calling Paul Ryan a radical! Dems can't wait for Gingrich to denounce the coming ads, which will attract a ton of free publicity about the GOP's radical attack on Medicare. The truth is: Newt said it. Most voters believe it. It happens to be true.

Democrats I know are licking their lips and breathing deeply with excitement about how many Republicans will lose their seats because they are trying to destroy Medicare.

It will be fun for Democrats to watch Nancy Pelosi on the march in Wisconsin. She just might strike the political mother lode of the 2012 House campaigns.