Yet, over all, 60 percent approved of the job he was doing.
But asked about his work as mayor overall, only 32 percent approved while 57 percent disapproved.
About 78 percent approved of President Bush's stand.
And just 35 percent approved of the job Republican leaders in Congress are doing.
On economic questions, 48 percent disapproved of his performance and 43 percent approved.
Sixty percent approved of the way their own representative handled his or her job and 21 percent did not approve.
The proposed renewal rates are slightly higher than increases of 6 percent and 9 percent approved last year.
He added that in a recent survey of 12,000 passengers, 65 percent approved of the concept.
In subsequent tests the level will be raised to 1 percent and eventually to the 5 percent approved by the commission.
A month earlier 42 percent approved, 42 disapproved and 16 expressed no opinion.