President-elect Donald Trump’s declaration that he’d like to see the Electoral College abolished — despite losing the popular vote on Election Day — could give a shot in the arm to reform efforts, opponents of the system said Monday.

More than 700 bids to modify or get rid of the weighted, state-by-state voting process have failed, most recently a bill introduced by then-US Rep. Jesse Jackson Jr. in 2004.

But a movement that wouldn’t require amending the Constitution — called the National Popular Vote Compact — has been quietly gaining steam since its introduction in 2007.

Under the plan, states would use their constitutional “plenary power” to award their electoral votes to the winner of the popular vote once there’s support among enough states to make it work.

The proposal has been written into law in 10 states and the District of Columbia, which together control 165 of the 270 electoral votes needed to elect a president.

In New York, Gov. Andrew Cuomo renewed the state’s commitment to the proposal indefinitely the day before Americans went to the polls last week.

Legislation has also passed at least one legislative chamber in 12 other states with a total 96 electoral votes.

Pat Rosenstiel of the nonprofit National Popular Vote — which is spearheading the effort — predicted passage in time for the 2020 presidential contest.

The states that have so far enacted the law all lean Democratic, but Michelle Whittaker of the nonprofit FairVote was hopeful that Trump’s “60 Minutes” interview Sunday would bring Republican states on board.

As of Monday evening, the popular vote count in the 2016 election had Hillary Clinton leading Trump by nearly 700,000 votes — 61,047,207 to 60,375,961.

That margin is even wider than the tally recorded in 2000, when Al Gore lost the presidency to George W. Bush despite winning the popular vote, 50,996,582 to 50,456,062.