Story highlights Bernie Sanders' campaign on Tuesday sued Ohio Secretary of State Jon Husted, accusing the Republican of quietly changing a law in an effort to block 17-year-olds from voting in the state's presidential primary next week

Husted, however, insisted that there had been no change in the law

Washington (CNN) Bernie Sanders' campaign on Tuesday sued Ohio Secretary of State Jon Husted, accusing the Republican of quietly changing a law in an effort to block 17-year-olds from voting in the state's presidential primary next week.

Husted, however, insisted that there had been no change in the law.

"The secretary of state has decided to disenfranchise people who are 17 but will be 18 by the day of the general election," Sanders campaign manager Jeff Weaver told reporters in Detroit Tuesday afternoon. "Those people have been allowed to vote under the law of Ohio, but the secretary of state of the state of Ohio has decided to disenfranchise those people to forbid them from voting in the primary that is coming up on March 15."

In a statement, Sanders said minorities would be most affected by what he said was Husted's "unconstitutional attempt to block young voters from casting ballots."

"It is an outrage that the secretary of state in Ohio is going out of his way to keep young people -- significantly African-American young people, Latino young people -- from participating," Sanders said.

Read More