Republican state rep candidate Helen Brady of Concord. SUN/JOHN LOVE

BOSTON – The Supreme Judicial Court plans to issue a ruling by the close of business Monday on whether Helen Brady, a Republican candidate for the 9th Congressional District, should remain barred from the ballot as the State Ballot Law Commission ruled.

The commission deemed Brady ineligible after finding that a third-party vendor she used to collect electronic signatures did not follow the SJC-outlined protocols for storing and managing those signatures.

Brady’s attorney argued that, because other candidates used the same vendor but did not draw formal eligibility challenges, it would violate her constitutional equal protection rights to punish her and no others.

Now a resident of Plymouth, Brady formerly lived in Concord, where she unsuccessfully ran against former state Rep. Cory Atkins. Then, she launched an unsuccessful campaign for statewide office, auditor, which she lost.