Obamacare is endlessly referred to as President Obama's "signature domestic achievement," but six more weeks like the last half dozen could change that to "ruined his presidency."

Consider Washington Examiner White House correspondent Susan Crabtree's report that the latest CNN/ORC International survey found that "for the first time, a majority of Americans at 53 percent believe the president is not honest and trustworthy."

The survey also found, Crabtree said, that only 40 percent of those surveyed "say Obama can manage the government effectively." That figure is based on responses to how Obama is viewed in terms of nine separate personal characteristics.

Worse is coming

But those numbers, as bad as they are for the president's political prospects, only skim the surface of the damage being wrought by Obamacare.

Examiner's Chief Political Correspondent Byron York dug deep into the data and concluded that Obama's problem isn't merely that Obamacare's rollout has been disastrous but that it has and will continue to inflict irreversible damage to his credibility.

Put another way, people no longer believe Obama when he promises something because his Obamacare promises are proving to be empty. They have decided Obama no longer deserves the benefit of the doubt.

Are you listening, GOP?

As York explains, things are only going to get worse for Obama as Obamacare's expanding implementation steadily consumes millions more people.

"Millions of Americans are unhappy with what they have experienced under Obamacare — canceled policies, higher premiums, and sky-high deductibles. They are also much more likely to believe predictions of future problems," York writes.

Voters who are convinced things are only going to get worse are especially open to listening to somebody with fresh ideas and different approaches. Who will that be in 2014?

On today's washingtonexaminer.com

Editorial: Federal judge slams class-action lawyers in Nissan case.

Byron York: Voters are finished believing Obama's health care promises.

Susan Crabtree: Obama's poll ratings plunge on trustworthiness, management ability.

Cal Thomas: Iran deal is Obama's Munich.

Gene Healy: Everybody loses when Senate nukes filibusters.

Joel Gehrke: Obama donors want him to 'nullify' Congress.

Ashe Show: The 'dirty jobs' story is how federal regulations have nearly crushed them.

In other news

The Washington Post: Afghan accord near collapse due to new demands.

The New York Times: Iran deal underlines U.S., Saudi rift.

NBC News: 'Do-nothing' Congress on track for one of least productive years ever.

USA Today: Obama willing to split immigration bill.

Los Angeles Times: Federal judge's ruling throws bullet train's future in doubt.

ABC News: Deadline to fix Obamacare nears, warnings persist.

Righty Playbook

The Weekly Standard: Abject surrender by the U.S.

National Review Online: Obama's war on human nature.

American Conservative: What the Iran deal means for Republicans.

Lefty Playbook

Talking Points Memo: Obama privately asks for gradual return to healthcare.gov.

New Republic: You might lose your doctor but don't blame Obamacare.

American Prospect: Bibi's agreement anxiety disorder.