WASHINGTON —A new national poll focused on Louisiana shows Gov. Bobby Jindal with only a 37 percent approval rating and it also indicates that Sen. Mary Landrieu, D-La., leads several potential opponents in her 2014 re-election bid.

The poll, conducted by Public Policy Polling, of North Carolina, which conducts polls for Democrats and progressives, focused on Landrieu’s re-election chances, but also took note of Jindal, whom the firm polled at a 58 percent approval rating in 2010. The poll was not done for the Landrieu campaign.

The new poll that places Jindal at a 37 percent approval rating was conducted Friday to Tuesday by surveying 603 Louisiana voters through automated telephone interviews. Jindal had a 57 percent disapproval rating in the new poll.

The margin of error was plus or minus 4 percent.

The poll summary describes Jindal — a potential 2016 GOP presidential contender — as having a “massive downward shift” to the point that “he is now one of the most unpopular governors in the country.”

As for Landrieu, she had a 47 percent approval rating with 45 percent disapproving, according to the poll.

The poll also put Landrieu up against Jindal, Lt. Gov. Jay Dardenne and most of the Republicans in the Louisiana congressional delegation and she bested all of them in head-to-head matchups, according to the poll.

Out of the delegation, only Reps. Bill Cassidy, R-Baton Rouge, and John Fleming, R-Minden, are openly flirting with running against Landrieu.

Landrieu led Cassidy 50 percent to 40 percent and Fleming by 50 percent to 38 percent.

But Cassidy, Fleming and the rest of the delegation all had more than 50 percent “not sure” responses, indicating low name recognition.

“Most of the Republicans have low name recognition so it will get closer,” Dean Debnam, president of Public Policy Polling, said in the release. “But Mary Landrieu’s near 50 percent and in a much stronger position for re-election probably than most people would have expected.”

Dardenne, who may be more likely to consider running for governor in 2015, had the second-highest favorability rating at 41 percent, but Landrieu still narrowly beat him 46 percent to 43 percent.

Landrieu would have beaten Jindal on a 49 percent to 41 percent split.

The poll also included former Rep. Jeff Landry, R-New Iberia, who left Congress in January after being forced into the same district against Rep. Charles Boustany, R-Lafayette, and losing. Landrieu led Landry 48 percent to 39 percent.

Out of those surveyed, 54 percent said they voted for GOP nominee Mitt Romney in November compared with 40 percent for President Barack Obama.