No individual shall be named on any ballot as the candidate of more than one major political party. No individual who has been certified by a canvassing board as the nominee of any major political party shall be named on any ballot as the candidate of any other major political party at the next ensuing general election.
No individual who seeks nomination for any partisan or nonpartisan office at a primary shall be nominated for the same office by nominating petition.
No individual shall be nominated by nominating petition for any nonpartisan office.
A candidate who files an affidavit of candidacy for an office to be elected at the general election may not subsequently file another affidavit of candidacy for any other office to be elected on the date of that general election, unless the candidate withdraws the initial affidavit pursuant to section 204B.12. The provisions in section 645.21 do not apply to this subdivision.