President George H.W. Bush with Soviet leader Mikhail Gorbachev on December 3, 1989.

The Secret Service failed to repair or replace a home alarm system for former President George H.W. Bush for more than a year, leaving open the possibility for a major security breach at the family’s Houston residence.

That’s according to a new report due to be released Thursday, the Washington Post report.

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A security expert had actually warned Secret Service the system was due to fail because it was old and out-of-date, but the agency refused his request to replace it, the Department of Homeland Security’s inspector general wrote in the report.

The system did quit in September 2013, but it wasn’t replaced until the final weeks of 2014. Secret Service, meanwhile, added an agent to patrol the home. But House Oversight and Government Reform Committee Chairman Jason Chaffetz called the Secret Service’s security lapse “wholly and totally unacceptable,” Fox News reported.

The report also points to looming alarm system problems at the Bush family summer home in Maine.

The Washington Post, meanwhile, had reported in January the security system at Vice President Joe Biden’s home had a history of failing, too. Secret Service agents addressed that problem by turning the system off, the newspaper reported.

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