AUGUSTA, Maine (AP) —Democrats in Maine have a large lead over Republicans in registering voters in Maine, though both parties have more members than they’ve ever had in at least three decades.

Democrats currently have 386,786 registered voters and Republicans have 295,122. Though both numbers are expected to change the closer we draw to the 2020 election.

The Maine Secretary of State’s Office has compiled data that show  enrollments are the highest since at least 1990, the first year with available statistics, the Portland Press Herald reported.

The number of unenrolled voters in the state declined to 339,782. There were more than 367,000 unenrolled voters in the state in 2014, after which the figure began to decline.

The secretary of state’s office compiled the data after the July 14 primary. Maine is headed into a very competitive general election cycle in which the state’s electoral votes, a U.S. Senate race and a U.S. House of Representatives race are all under close watch.

Jim Melcher, political science professor at the University of Maine Farmington, credits the boost to the recent primaries since March. He mentions that the gains may simply be an “artifact” of primary voters who wanted to participate. Maine does not allow unenrolled voters to vote in primary elections.

“This probably reflects a minor benefit for Democratic candidates generally, but Maine voters are ticket splitters, and this is unlikely to translate into advantages for Ds in every race,” Melcher said.

Republicans also saw some gains since March, largely fueled by the July primaries in the 2nd Congressional District.

Melcher said much of the shift may be reflective of voters’ reactions to President Trump.

“Trend line is definitely good for Democrats,” he said. “I think the Trump era has pushed people in the direction of picking sides.”