John McCain will give a speech today on tax cuts and the economy, in which he will call upon the Republican Party to embrace fiscal restraint, and lambaste the Democrats -- especially Barack Obama -- as the party of big tax hikes. It should be an interesting look at how the GOP shifts gears into the general election and takes on Obama, now that the widespread assumption is that he will be their opponent.

"All these tax increases are the fine print under the slogan of 'hope,'" McCain will say. "They're going to raise your taxes by thousands of dollars per year -- and they have the audacity to hope you don't mind."