The first presidential debate between Republican John McCain and Democrat Barack Obama focused mainly on national security issues and the economic crisis/Wall Street bailout package.

But energy issues came up a few times during the debate, with McCain and Obama squabbling over the details of how the country could achieve greater energy security.

Grist thanks its sponsors. Become one.

Grist’s David Roberts and Kate Sheppard live-blogged the debate. Here are their posts:

* The big picture on energy

Grist thanks its sponsors. Become one.

* McCain tags Obama for ’05 energy bill

* More on the 2005 energy bill

* Seal DNA!

* Nuclear Power