Fundraising, and lack of it, fuels Carnahan intrigue.

Byline: Jake Wagman

July 11--ST. LOUIS -- While many candidates are planning their moves for next year, the siblings Carnahan find themselves on opposite ends of the campaign spectrum. U.S. Rep. Russ Carnahan's seat won't exist in 2012, but he's still attempting to raise lots of money. His young sister, Secretary of State Robin Carnahan, has said she is running for re-election, but has raised nary a dime for next year. That has raised questions about whether Robin really will be on the statewide ticket next year -- and where on the ballot her brother will land.

Russ Carnahan's campaign blitzed supporters last month with donation requests, looking for an …