Last September, after GOP U.S. Senate candidate Mark Kirk switched his position on cap-and-trade for political gain, Greg Hinz directly questioned the candidate's principles.  "Who knows what the man now really believes," he wrote at the time.

Considering the glowing treatment Kirk had received in the media over the course of his career in Congress, Hinz's remark was ... well ... remarkable.  But following the recent string of revelations about his resume inflation, the questions have moved beyond whether Kirk is intellectually principled to whether he is fundamentally honest. Case in point, this passage from Rich Miller's latest blog post on the issue:

These accusations against Mark Kirk are no longer about mere “embellishments” or “exaggerations.” This campaign is now about whether anything he says is true, and why.