The fact that DeMint has Tea Party cred at all is not going to be helpful in the general election. With the TP less popular than Muslims, it is going to be a liability.
Let's see if this is true:
According to Wikipedia:
DeMint is ranked by The National Journal as one of the most conservative members of the Senate.[9] Salon.com has called him "perhaps the most conservative member of the Senate."
Hia positions are:
opposes spending increases of the federal government; opposed federal bailouts for banks and automobile corporations.
supports a balanced-budget amendment to the U.S. Constitution.
opposes abortion, including in cases of rape and incest. He approves of abortion only when the mother's life is in danger.
supports school prayer and has introduced legislation that would allow schools to display banners such as one stating "God Bless America".[14]
opposed NATO intervention into Kosovo.
supported U.S. invasion of Iraq.
supported de facto president Roberto Micheletti, and met with him in Honduras. a meeting that was opposed by US President Barack Obama's administration. The State Department officially viewed ousted president Manuel Zelaya as the legitimately elected president
opposed Obama's health reform legislation; voted against the Patient Protection and Affordable Care Act in December 2009, and he voted against the Health Care and Education Reconciliation Act of 2010.
He also supported the candidacy of Sen. Rand Paul. Yep, tea-bagger for sure. I hope Romney picks him as veep - unless, of course, Sarah Palin is available.