WASHINGTON >> The top official for veterans’ health care resigned Friday amid a firestorm over delays in care and falsified records at veterans’ hospitals.

Veterans Affairs Secretary Eric Shinseki says he has accepted the resignation of Robert Petzel, the department’s undersecretary for health care. Shinseki had asked for the resignation, a department official later said on condition of anonymity because he was not authorized to speak for attribution.

Rep. Jeff Miller, R-Fla., chairman of the House Veterans’ Affairs Committee, mocked the announcement, calling it "the pinnacle of disingenuous political doublespeak" since Petzel had been scheduled to retire this year anyway. The American Legion, which has called for Shinseki to resign, said pretty much the same thing: "This move by VA is not a corrective action, but a continuation of business as usual."

The White House said President Barack Obama supports Shinseki’s decision on Petzel and thanks Petzel for his service. "As the president has said, America has a sacred trust with the men and women who have served our country in uniform and he is committed to doing all we can to ensure our veterans have access to timely, quality health care," the White House said.

The announcement came a day after Shinseki, a Kauai native,P and Petzel were grilled at a four-hour hearing of the Senate Committee on Veterans’ Affairs, where lawmakers and veteran groups expressed exasperation of long-standing problems at the department.

Meanwhile, House Republicans scheduled a vote for Wednesday on legislation that would give Shinseki more authority to fire or demote senior executives and administrators at the agency and its 152 medical centers.

When senior leaders in the VA "fail the men and women who have put their lives on the line for our country, they deserve a pink slip – not a bonus," House Speaker John Boehner said Friday. While some Republicans in Congress have joined the call for Shinseki to resign, Boehner is not among them.

Sen. John McCain, R-Ariz., has backed Shinseki but appeared to waver after Shinseki came before a Senate committee this week.

"If he doesn’t give a better answer, then I’m not sure how he wouldn’t have to do anything but resign," McCain told Fox News Channel Thursday night.

McCain said he believes problems at the VA go beyond incompetence.

"If these allegations are true people should be going to jail, not just resigning their positions," he said, adding that a criminal investigation by the Justice Department appears inevitable.

"Everything I’ve seen is going to lead us to the attorney general," McCain said.

Reports of long waits for appointments and processing benefit applications have plagued VA for years. The agency has shortened backlogs but allegations of unnecessary deaths that may be linked to delays at the Phoenix VA hospital have triggered an election-year firestorm. A whistleblower there alleged that up to 40 people may have died while awaiting appointments and that staff kept a secret appointment list to mask the delays.

Shinseki asked the VA inspector general to investigate. And an initial review of 17 people who died while awaiting appointments at the Phoenix hospital found that none of their deaths appeared to have been caused by delays in treatment, acting inspector general Richard Griffin told senators Thursday. But he also said new complaints about wait lists and falsified patient appointment had surfaced at other VA hospitals and clinics after the Phoenix allegations came to light. At least 10 new allegations about manipulated waiting times and other problems have surfaced in the past three weeks, he said.

Petzel was scheduled to retire this year, and Shinseki last fall had convened a commission to recommend candidates for presidential appointment to be the new undersecretary. VA is required by law to convene a commission to seek and review candidates for the position.

Petzel had agreed to remain until the Senate confirmed a replacement. President Obama this month announced his intent to nominate Dr. Jeffrey A. Murawsky to be undersecretary for health.

"As we know from the veteran community, most veterans are satisfied with the quality of their VA health care, but we must do more to improve timely access to that care," Shinseski said in a statement announcing Friday that Petzel was leaving.

In his position, Petzel oversaw what officials say is the largest health care delivery system in the U.S. The VA operates 1700 hospitals, clinics and other facilities around the country. They employ about 300,000 people and serve about 6.5 million veterans and other beneficiaries each year.

Miller wrote the legislation that is to be taken up next week. He said Friday that the resignation announcement shows the VA is "apparently unwilling to take substantive actions to hold any of its leaders accountable."

Shinseki on Thursday told senators he was "mad as hell" about allegations of severe problems and said he was looking for quick results from a nationwide audit. He has rejected calls for him to resign.