I wouldn't exactly call Rossi the frontrunner at this point. Not sure what information is leading you to that conclusion other than your gut feelings. Latest NW Digest poll has Didier leading Rossi by 6 points.

http://nwdigest.com/opinion/05-20-2010/washington-state-u-s-senate-gop-primary-poll/

Didier also won the straw poll at the state GOP convention.

Like I said,....no fan of Rossi, never have been. If I was faced with a choice of him or Murray,.......I'd vote for none of the above or any no name independent on the ballot. Call it a wasted vote if you will, but the only wasted vote is the one not cast.

My point earlier was that doing business with a convicted criminal does not make one a criminal himself. If the guy did his time, paid his debt to society, and is on the up and up now why should anyone assume that his current business activities are anything but above board? May or may not be the case. Just saying that if you're accusing them of criminal actions, you better have more proof than that.
_________________________
On a long enough timeline the survival rate for everyone drops to zero.