We assume this is how things are taken care of in Texas – you say yes before being asked, only to make the entire process run smoother, or perhaps less awkwardly.

Chet Edwards Would Take VP Post If Obama Offered.
…

The Hill (6/25, Soraghan) reports Rep. Chet Edwards (D-Texas), “the congressman that House Speaker Nancy Pelosi (D-Calif.) suggested as a vice-presidential pick, says he has not talked to the Obama campaign, but he would not say no if he was asked.” Edwards said, “I cannot imagine too many Americans wouldn’t consider it an honor to serve our country as vice president. … I have not met with the Obama campaign about this.” The San Antonio Express-News (6/25, Martin) reports that Edwards “says he’s ‘humbled’ by” Pelosi’s “suggestion that” Obama consider him as a potential “running mate, but is refusing to speculate on whether he’s actually being considered.” Edwards “said he hasn’t met with the Obama campaign regarding the vice presidential nomination, and he declined to discuss the process or other potential candidates for the post.”

We don’t blame you Chet – you’re competiting for attention with the likes of 434 other people.  What an awful way to live when you could be a heartbeat away from actually having to do something productive.