About 127 defense department projects were initially paused in September 2019 after Defense Secretary Mark Esper signed off on the White House request to use $3.6 billion in military construction funds, defense officials told CBS News at the time.

A Biden administration official said border wall construction under the Trump administration has tied up "more than $14 billion in taxpayer funds." President Trump's declaration of emergency at the border greenlighted the transfer of billions in building contracts through the Army Corps of Engineers.

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