PHOENIX (AP) - The Latest on a challenge to Arizona’s presidential primary election (all times local):

12:25 p.m.

A poll worker who was on duty during Arizona’s problematic presidential primary testified Monday that the computer system checking in voters would not allow her to give the correct ballots to 36 Democratic voters while she counted about 20 other voters that were listed in the wrong party.

The testimony by Dianne Post came Monday at the start of a hearing on an election challenge.

Another voter testified that she was incorrectly identified on Pima County’s voter rolls as an independent when she’s a Democrat.

The hearing was convened after a judge rejected requests to have the case dismissed. It’s expected to last two days.

Tucson resident John Brakey sued Arizona Secretary of State Michele Reagan and all 15 counties after the election. He contends long lines in Maricopa County suppressed the vote and statewide voter registrations problems led to illegal vote counts. He wants the results decertified.

The attorney general says the primary results can’t be challenged and Brakey can’t show the results would change if the contest was allowed.

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This story has been corrected to show a poll worker testified that the computer system checking in voters would not give the correct ballots to 36 Democratic voters.

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11:30 a.m.

A judge has allowed testimony to proceed on a court challenge prompted by major problems in Arizona’s presidential primary after rejecting efforts by the state and counties to have the case dismissed.

Monday’s rulings from Maricopa County Superior Court Judge David Gass mean a full hearing can begin with testimony expected from experts and voters who allege they couldn’t cast ballots.

Tucson resident John Brakey sued Arizona Secretary of State Michele Reagan and all 15 counties after the election. He contends long lines in Maricopa County suppressed the vote and statewide voter registrations problems led to illegal vote counts. He wants the results decertified.

The attorney general says the presidential primary results can’t be challenged and Brakey can’t show the results would change if the contest was allowed. But the judge let the case proceed.

3 a.m.

A court challenge prompted by major problems in Arizona’s presidential primary heads to a full hearing with testimony expected from experts and voters who allege they couldn’t cast ballots.

Monday’s hearing in Maricopa County Superior Court comes as Judge David Gass considers a request from the Arizona attorney general’s office to throw out the case.

Tucson resident John Brakey sued Arizona Secretary of State Michele Reagan and all 15 counties after the March 22 election. He contends long lines in Maricopa County suppressed the vote and statewide voter registrations problems led to illegal vote counts. He wants the results decertified.

The attorney general says the presidential primary results can’t be challenged and Brakey can’t show the results would change if the contest was allowed.