Cash-rich super PACs prolong flagging presidential campaigns
Jeb Bush‘s recent cancellation of advertising plans in Iowa and South Carolina was yet another cost-saving step for a down-in-the-polls presidential campaign that had already thinned its staff. If not for his flush super PAC, the Republican might be gone from the contest by now. That group, Right to Rise, has burned through half of its $103 million — which still leaves it with about as much cash as John McCain spent during the entire 2008 GOP nominating contest. In…