Joe Ricketts, a billionaire whose family owns the Chicago Cubs, plans to shell out $12 million to support Republican candidates in the next week, with $10 million of that going to ads supporting presidential candidate Mitt Romney. The ads will run nationally, with more targeted spots appearing in the battleground states of Wisconsin, Ohio, Iowa, and Virginia. The move by the 71-year-old Ricketts puts him in the company of other election-year conservative backers like the Koch brothers and Sheldon Adelson, all of whom have been willing to pour millions into their pet causes. Ricketts has also started his own super PAC, the Ending Spending Action Fund.