Here's the Liberal Moment (SM) Handout on The Political Spectrum - 2007 Primaries.

Examining the entire political spectrum finds most Republicans toward the upper-right authoritarian, economic "right" and most Democrats also on the upper-right, but just not as extreme. Only two Democratic candidates are slightly to the "left" of the "liberal" center.

From The Political Compass: On prominent candidates in the 2007 primaries who "... have been evaluated through scrutiny of public statements, manifestos, interviews and, crucially, voting records.

As posted at US Primaries 2007:

Political Compass Diagram, 8/21/07

Reconstructed for B&W printing.

Political Compass Diagram, 8/21/07, for B&W printing