Nearly half of the registered voters in New Jersey surveyed support investigating U.S. Sen. Robert Menendez's ties to a political donor.
Forty-eight percent in a Quinnipiac University Poll released Wednesday think the issue is worth investigating compared to 32 percent who believe it's politically motivated.
The Democrat's job approval ratings continue to improve in the wake of the ethics probe, with 44 to 32 percent approving of the job Menendez is doing. That's up from 40 percent in March and 36 percent in February.
Voters say 39 to 32 percent that Menendez is honest and trustworthy.
The phone survey of 1,112 registered voters has a sampling error of plus or minus 2.9 percentage points.
Menendez, 59, is reportedly being investigated for his alleged relationship with a Florida doctor and political donor.