Pennsylvania voters disapprove of Gov. Corbett’s job performance 47 percent to 38 percent, the fourth straight month with a negative rating, according to the independent Quinnipiac University poll.
Three potential Democratic opponents each leads the Republican incumbent by 9 percentage points or more, the poll finds.
Former U.S. Rep. Joe Sestak, who was the party’s 2010 Senate nominee, leads Corbett 48 percent to 34 percent in a hypothetical match-up. Current U.S. Rep. Allyson Schwartz is in front 47percent to 34 percent. And State Treasurer Rob McCord is up 44 percent to 35 percent.
Schwartz has declared her candidacy for the Democratic nomination. McCord is considering running for governor, and Sestak raised $460,000 in the first quarter of the year and has said he is “exploring” public service but has not been specific about whether he is thinking of the governorship or some other office, such as another run for the Senate down the road.
Women are opposed to Corbett’s reelection by a margin of 2 to 1, 54 percent to 27 percent. Men are more favorable to a second term, with men opposed by 46 percent to 39 percent.
 “Pennsylvania Gov. Tom Corbett gets a triple dose of bad news,” said Tom Malloy, assistant director of the Quinnipiac University Polling Institute. “Fortunately for Gov. Corbett, the election is not today. He has 18 months to turn things around.”
Among the Democrats, 59 percent were undecided in the 2014 primary. Schwartz and Sestak were at 15 percent support; none of the other potential candidates was above 3 percent.
Quinnipiac surveyed 1,235 registered Pennsylvania voters by landline and cell phone from April 19 through April 24, with a margin of error of plus or minus 2.8 percentage points. The Democratic sample of 547 Democrats is subject to a margin of error of 4.2 percent.