MONROE - On April 5, Monroe and three surrounding communities will vote on whether the U.S. Constitution should be amended to say that rights are limited to only "natural born persons," not businesses or organizations, and that campaign finance should be transparent. The referendum is an advisory vote only but urges the possibility of a change to the Constitution if enough of the country's population stands in favor of the amendment. United to Amend, an organization founded in Madison in response to the U.S. Supreme Court decision for Citizens United in 2010, requested the referendum be included on ballots.