A new poll indicates only a third of Americans believe their members of Congress are honest.

In a poll of 1,000 adults taken October 3 through 5, the Associated Press reports, 45 percent of those surveyed gave Congress poor marks for honesty and ethics.

One-third of the respondents said congressional ethics are good, and 21 percent said congressional ethics are neither good nor poor.

Only 35 percent said they approved of the way Congress does its job. That number is down from 44 percent in a similar poll taken in February.

Two top Republican lawmakers are being investigated for ethics issues. Senate Majority Leader Bill Frist is the subject of a federal probe for possible insider stock trading. Former House Majority Leader Tom Delay was charged in Texas earlier this month with violating campaign finance laws.

Some information for this report provided by AP.