If you're running for president of the United States, it's advisable not to dismiss 47% of the electorate as scroungers who will never vote for you, especially if you're a multi-millionaire who paid just 13.9% in tax in 2010. But that's exactly what Mitt Romney has done. Mother Jones has just released a secretely recorded video in which the Republican candidate is shown telling a private donor dinner that 47% of US voters are "dependent upon government" and will vote for Obama "no matter what".

Asked by one donor how he could win in November, Romney replied:

There are 47 percent of the people who will vote for the president no matter what. All right, there are 47 percent who are with him, who are dependent upon government, who believe that they are victims, who believe the government has a responsibility to care for them, who believe that they are entitled to health care, to food, to housing, to you-name-it. That that's an entitlement. And the government should give it to them. And they will vote for this president no matter what…These are people who pay no income tax ... [M]y job is is not to worry about those people. I'll never convince them they should take personal responsibility and care for their lives.

It's compassionless conservatism in its purest form.

You might reasonably argue that those offended probably wouldn't vote for Romney anyway (one often hears this sort of rhetoric from the Tea Party) and, therefore, that the tactless Republican had a point. But it's likely that the video will alienate many of the floating voters he needs to win over if he's to catch Obama in the polls, while also motivating disillusioned Democrats to vote. Among those who pay no income tax, for instance, are millions of pensioners (the most likely group to vote), whom one assumes won't take kindly to being described as "victims" and dependents, as well as students and the disabled, none of whom can be described as scroungers. At a time of economic stagnation, it's also unwise to imply that the unemployed, many of whom will have paid tax in the past (often at a higher rate than Romney), simply chose not to work.

With some success, the Democrats have portrayed Romney as a candidate with little concern for anyone but the wealthy - now they have all the proof they require. Worse, the video suggests he is an insincere man who says one thing in public and another behind closed doors, a fatal impression for any politician to create.

Here's how the Obama campaign responded tonight:

It’s shocking that a candidate for President of the United States would go behind closed doors and declare to a group of wealthy donors that half the American people view themselves as ‘victims,’ entitled to handouts, and are unwilling to take ‘personal responsibility’ for their lives. It’s hard to serve as president for all Americans when you’ve disdainfully written off half the nation.

Update: Mother Jones has just released another secret Romney video, this time featuring a series of ill-advised comments from the "former presidential hopeful" on the Israeli-Palestinian conflict.

Asked by one donor how the "Palestinian problem" could be solved, Romney replied that the Palestinians had "no interest whatsoever in establishing peace, and that the pathway to peace is almost unthinkable to accomplish". He added: "I look at the Palestinians not wanting to see peace anyway, for political purposes, committed to the destruction and elimination of Israel, and these thorny issues, and I say there's just no way."