A new poll on Louisiana's US Senate race shows its a toss-up between Democratic incumbent Mary Landrieu and Republican challenger Bill Cassidy. Each had 47-percent of the vote in a potential run-off. That's according to Public Policy Polling.
Pollster Tom Jensen gives a slight edge to Cassidy, because of Landrieu's poor approval ratings.
"Senator Landrieu's approval rating is only 42%, 52% of voters disapprove of her," Jensen said. "Most of the time when you see an incumbent with those kinds of approval numbers, they usually don't get re-elected."
Landrieu could possibly avoid a run-off, if she received 50-percent or more of the vote in the primary. But Jensen says their survey shows the three-term senator getting 44-percent of the vote in a primary race featuring Cassidy and republicans Rob Maness and Paul Hollis.
"Even with 17-percent of voters still undecided, it's unlikely that Mary Landrieu can get to 50% in November, because among those undecided voters, only 8% disapprove of her."
Public Policy Polling, which is based in North Carolina, polled 664 registered voters last week.