The Economy

The American financial system is the victim of decades of Republican deregulatory and anti-tax policies. Those ideas have been proved wrong at an unfathomable price, but Mr. McCain  a self-proclaimed “foot soldier in the Reagan revolution”  is still a believer.

Mr. Obama sees that far-reaching reforms will be needed to protect Americans and American business.

Mr. McCain talks about reform a lot, but his vision is pinched. His answer to any economic question is to eliminate pork-barrel spending  about $18 billion in a $3 trillion budget  cut taxes and wait for unfettered markets to solve the problem.

Mr. Obama is clear that the nation’s tax structure must be changed to make it fairer. That means the well-off Americans who have benefited disproportionately from Mr. Bush’s tax cuts will have to pay some more. Working Americans, who have seen their standard of living fall and their children’s options narrow, will benefit. Mr. Obama wants to raise the minimum wage and tie it to inflation, restore a climate in which workers are able to organize unions if they wish and expand educational opportunities.

Mr. McCain, who once opposed President Bush’s tax cuts for the wealthy as fiscally irresponsible, now wants to make them permanent. And while he talks about keeping taxes low for everyone, his proposed cuts would overwhelmingly benefit the top 1 percent of Americans while digging the country into a deeper fiscal hole.

National Security

The American military  its people and equipment  is dangerously overstretched. Mr. Bush has neglected the necessary war in Afghanistan, which now threatens to spiral into defeat. The unnecessary and staggeringly costly war in Iraq must be ended as quickly and responsibly as possible.

While Iraq’s leaders insist on a swift drawdown of American troops and a deadline for the end of the occupation, Mr. McCain is still talking about some ill-defined “victory.” As a result, he has offered no real plan for extracting American troops and limiting any further damage to Iraq and its neighbors.

Mr. Obama was an early and thoughtful opponent of the war in Iraq, and he has presented a military and diplomatic plan for withdrawing American forces. Mr. Obama also has correctly warned that until the Pentagon starts pulling troops out of Iraq, there will not be enough troops to defeat the Taliban and Al Qaeda in Afghanistan.