Why does Paul Ryan have to run TV ads in his Congressional reelection race?

According to a report from the Associated Press, Republican Congressman Paul Ryan, who was tapped to serve as Republican Mitt Romney’s vice presidential running mate, will begin running ads in support of his Congressional reelection campaign.

Contracts formalized Tuesday with at least one Milwaukee television station show that Ryan’s congressional ads will start airing Wednesday morning and go initially for two weeks. The Ryan congressional ads start in the same week as presidential ticket mate Mitt Romney’s commercials went on air in Wisconsin, although the cost for the two sets of ads are drawn from different campaign accounts.

Wisconsin law allows Ryan to seek both offices simultaneously but only serve in one if he wins the pair.

So what I’m wondering is why Paul Ryan feels he needs to run TV ads in support of his Congressional reelection campaign if he’s confident that the Romney-Ryan campaign will prevail in November.

The fact that Paul Ryan is hedging his bets by running for vice president and Congress at the same time just underscores how desperate he is to continue to draw a taxpayer-funded salary, without regard for what position allows him to continue to do so.