If Nebraska Republicans revise their state’s method of awarding presidential electors to help Donald Trump in November, Maine might match the change to boost President Joe Biden’s reelection prospects.

Nebraska’s governor, Jim Pillen, has said he’s open to calling a special legislative session to push through the change, but only if he’s sure it will pass. It isn’t clear whether the idea has enough support.

But Democrats are concerned.

“If Nebraska’s Republican Governor and Republican-controlled Legislature were to change their electoral system this late in the cycle in order to unfairly award Donald Trump an additional electoral vote, I think the Maine Legislature would be compelled to act in order to restore fairness to our country’s electoral system,” state House Majority Leader Maureen Terry, a Gorham Democrat, said in a prepared statement Friday.

Both states award two electoral votes to whichever presidential candidate wins the statewide tally and then allocate one for each congressional district, awarded to the contender who wins that district.

In practical terms, Maine typically votes for the Democratic presidential hopeful while Nebraska votes for the GOP’s nominee. But each state has one congressional district that the majority can’t count on.