McCain's Harriet Miers?

Political traders at Intrade are now betting on the likelihood that Sarah Palin, McCain's VP pick, will be withdrawn. The new prediction market contract, which was unveiled this morning and is currently trading at 13, comes on the heels of Palin's acknowledgement this weekend that her unmarried 17-year-old daughter is pregnant.

With the McCain campaign still too reticent regarding the rigor of its vetting process for some party loyalists, a handful of conservative bloggers are already expressing (pregnant) pause at their candidate's choice.

Still, Politickr is convinced that John Edwards would sooner claim responsibility for this pregnancy than John McCain would throw Palin under the bus for her straight talk. Any such acknowledgement that his first major presidential decision was so badly mismanaged would surely doom his candidacy. As a result, the new contract is a screaming short.

Other than the tabloids, the biggest winner here appears to be Intrade itself. The new contract has provided major news outlets, like Reuters, The Washington Post, and Huffington Post, with the news peg they need to write about a topic that has so far only generated off-the-record whispers.