A new poll shows Pennsylvania Gov. Tom Corbett's job approval rating is lower than ever.
The Quinnipiac University survey released Tuesday found that voters disapprove of the Republican's performance, 47% to 36%.
That's a sharp reversal since September, when Corbett's approval rating peaked at 50%, compared with 32% who disapproved.
"Gov. Tom Corbett tanks among men and women, giving him the lowest approval rating since taking office 18 months ago," said Tim Malloy, assistant director of the Quinnipiac University Polling Institute.
The numbers coincide with signs of discontent among fellow Republicans over Corbett's leadership and unrelenting Democratic criticism of his spending cuts in education and social services.
The same survey found President Barack Obama leading Mitt Romney 46% to 40% among Pennsylvania voters, with the president garnering strong support from women and independent voters. The match-up compares to a 47% to 39% Obama lead in a May 3 survey by Quinnipiac.
"While almost four-fifths of voters, including 58% of Republicans, say the president is a likable person, where the rubber meets the road on the campaign trail - the economy - Romney has the lead," Malloy said. "Pennsylvanians may like the president more than they like Mitt Romney, but the warm and fuzzy feeling gives way to the cold hard truth of a still shaky economy."
In the race for U.S. Senate in Pennsylvania, incumbent Bob Casey Jr., a Democrat, leads coal mine-owner Tom Smith, his largely unknown Republican challenger, 51% to 32%. Voters approve 51% to 29% of the job Casey is doing.
As for requiring Pennsylvania voters to present a photo ID to cast their ballot, there is strong support among all age and income groups, with 66% of voters approving the new law and 32% opposing it.
"Keystone State voters say overwhelmingly, 'No photo ID card, no ballot,' supporting 2-1 the new state law requiring a picture ID in order to vote," Malloy said.
The telephone survey of 997 voters was conducted from June 5 to June 10, The margin of sampling error was plus or minus 3.1 percentage points.