A new poll shows that Louisiana’s Democratic senator Mary Landrieu’s approval ratings fell by almost ten percentage points in the last six months, putting her numbers underwater. Landreiu’s current approval rating sits at 47 percent, a significant drop from when it stood at 56 percent in April.

Landrieu is seen as one of the more vulnerable Democrats in next year’s mid-term elections and the Southern Media & Opinion Research’s Bernie Pinsonat said the group’s survey doesn’t bode well for her. “If [she] faced re-election in the next few months, her outlook for re-election would be highly unlikely,” he said in a press release.

Additionally, her numbers in a matchup with her Republican challengers give her reason to worry. While she leads Republican hopeful Representative Bill Cassidy 41–34, tea-party Republican Rob Maness receives about 10 percent support in the poll. Under Louisiana’s primary system, in which the two leading candidates regardless of political party head to a second-round run-off, Cassidy could win if he picked up most of Maness’s votes.

Landrieu has made efforts to distance herself from Democrats’ support for Obamacare amid its troubled launch. Most notably, she introduced a bill intended to allow people to keep their insurance plans that had been canceled because of the health-care law.