A congressman is joining the state of Alabama in a lawsuit accusing the federal government of counting illegal aliens in the assessment of congressional seats and electoral college votes, giving states that voted Democrat in the 2016 presidential election another 20 seats.

U.S. Rep. Mo Brooks, R-Ala., argued in an Saturday that the counting of illegal aliens violates the 14th Amendment to the U.S. Constitution.

His own state is set to lose a congressional seat, he said.

“We’re probably in the neighborhood of about 15 million illegal aliens in America now,” Brooks said. “Fifteen million comes out to roughly 20 congressional seats and 20 electoral college votes. Each congressional seat has roughly 700,000 to 800,000 people in it.”

He said those votes would be “taken from states that follow our laws, that help our Border Patrol agents, and help our ICE agents.”

They would shifted, Brooks said, to states such as California that have large numbers of illegal aliens.

“I personally believe that’s wrong, on a policy level,” he told Breitbart News, “but I also believe it violates the Equal Protection clause of the 14th Amendment to the United States Constitution because it dilutes the voting power of citizens who live in states that don’t harbor an enormous number of illegal aliens.”

The lawsuit, , noted Louisiana, Missouri and Ohio lost House seats because if the inclusion of illegal immigrants, while California, Texas and Florida gained seats in the 2010 census.

“The Constitution does not permit the dilution of our legal residents’ right to equal representation in this manner,” Alabama Attorney General Steve Marshall said in a statement.

Meanwhile, other states contend immigrants will be undercounted in the 2020 Census because of the Trump administration’s decision to include a question about citizenship status.

Seventeen states want the question declared unconstitutional, asserting it will deter immigrants from participating in the Census, particularly in mixed-status households.