ST. PAUL, Minn. — Charges of partisanship flew both ways Friday at a Minnesota Senate hearing into changes made to two proposed constitutional amendments since the Legislature voted to put them on November’s ballot.

Republicans who called the hearing said Democratic Secretary of State Mark Ritchie had overstepped his bounds by affixing different ballot titles to the highly charged amendments — one dealing with marriage and the other with voting — and for being so vocal about potential downsides.

“Our secretary of state has crossed the line in this particular instance and is being partisan,” said Sen. Dave Thompson, R-Lakeville.

Democrats on the Senate State Government Innovation and Veterans Committee said Republicans were the ones with the political agenda and were misusing the state’s founding document to advance it.

Voters will decide this fall whether to add a ban on same-sex marriage to the state constitution and change polling place procedures, including making photo identification a requirement for voting. The Republican-led Legislature placed both on the ballot, bypassing Democratic Gov. Mark Dayton who had no ability to block them.