How wrongheaded is this? Let me count the ways.

First, the McCain folks may have missed this, but asset values have been falling, big time. Remember, John?... That whole financial mess that folks have been talking about? When capital assets, like stocks or bonds, lose value, that's a capital loss, and it's already deductible from your taxes.

OK, but there's probably a few folks out there who've realized some capital gains, or will do so at some point in the next couple of years. What's the point of giving them a tax break? What itch does that scratch?

The vast majority of realized capital gains--that's the money you make, for example, when you sell a stock for more than you paid for it--go the richest families, so they're the ones who benefit from this. The good number crunchers at the Tax Policy Center examined who would benefit from the McCain proposal. The middle fifth of families end up with all of 0.2% of the benefits. That's not a typo. The tax break would lower their annual tax bill by $4.00. OK, that is a gallon of gas, but it's not what you'd call a game-changer.

The top 20% end up with 98.3% of the benefits of the cut, and the top 1%, with income above $600,000 get 75% of the gains, for an average benefit of $37,600. The average tax savings for the top 0.1%--income above $3 mil--is $244,000. In other words, this isn't a recipe for helping families hurt by the financial crisis and the recession. It's a recipe for more income inequality.

So why do it...why cut the rate? You guessed it: good old trickle down. It's yet another example of that supply-side fairy dust that worked so well for Bush that McCain and Co. want to see the Bushies and raise them.

If cutting taxes for the wealthiest households boosted job creation, we'd know it. The Bush cuts, originally opposed by John McCain by the way, were sold on this premise. Yet before we began to shed jobs this year, employment growth in the Bush years was the worst on record.

If you want to provide income and job opportunities to people who are hurting, your best bet is to do so directly, through tax cuts targeted at them, and through infrastructure investment designed to create new, quality jobs. That's what Obama aims for in his recently announced package.

Finally, and this is important, does anyone really believe that this allegedly temporary cut will really sunset in two years? Like Dr. Phil says, "this ain't my first rodeo!" That's the tripwire in the Bush cuts. They end in 2011, but anyone who wants to let them do so is accused of supporting the "largest tax increase in history."

If we're foolish enough to sign onto this cut in the capital gains tax rate based on our understanding that the rate will reset in two years...well, as Bush himself put it, "fool me once, shame on...shame on you. Fool me...you can't get fooled again." In fact, here's a quote from a straight-talking Republican Senator back in 2003 when he opposed Bush's capital gain and dividend tax cuts based on these illusory sunsets: "...the problem with that is it's gimmickry. It makes a mockery out of the whole budgetary process..." Listen to yourself, Senator McCain.

So we are yet again left with John McCain getting it wrong on economic policy. There is absolutely a need to help struggling families right now, but if this is the best he can come up with, we'd all be much better off if he put the hammer back in the tool shed and left the policy construction to others.