Former House Speaker Newt Gingrich (R-Ga.) said President Obama’s legacy will disappear within a year of him leaving office.

In an appearance on Fox News on Wednesday, Gingrich criticized Obama for telling President-elect Donald Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE to push his policies through Congress, rather than by executive order.

“What you’re watching is a man who realizes all of a sudden 90 percent of his legacy is going to disappear because he didn’t do the hard work of passing legislation,” Gingrich said.

ADVERTISEMENT

“Starting the opening day when Trump starts to repeal all these executive orders, it’s going to be like one of those balloons that deflates and down to a core to 10 or 15 percent of what he originally did,” Gingrich continued. “The rest is all going to disappear within a year.”

Trump pledged to repeal all of Obama’s executive orders when he takes office.

“Trump’s a pretty good dealmaker, and I suspect that he will reach out to a lot of people,” Gingrich said.

Gingrich also criticized Democrats who are still reeling after Democratic presidential nominee Hillary Clinton Hillary Diane Rodham ClintonDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day More than 50 Latino faith leaders endorse Biden MORE lost the Electoral College but won the popular vote by nearly 3 million votes.

“The so-called professionals forgot the Electoral College mattered, and that’s what mattered,” Gingrich said.