Sen. Mary Landrieu’s approval rating has fallen by 10 percentage points in the last six months, according to poll by Southern Opinion & Media Research. Her rating now stands at 47 percent, dangerous territory for an incumbent.
The plunge is attributable, no doubt, to the increasing unpopularity of Obamacare.
The poll also tested Landrieu’s strength in a hypothetical three-way race against Republican Congressman Bill Cassidy and Tea Party backed Republican Rob Maness. The result was: Landrieu 41 percent; Cassidy 34 percent; Maness 10 percent; undecided 15 percent.
This suggests that, under Louisiana election procedure, Landrieu might well find herself in a run off election against Cassidy. That election would then turn on what supporters of the Tea Party candidate do.
This, I suspect, will frequently be the key question in elections to come.