Harrisburg Mayor Linda Thompson will be challenged in her reelection bid by three other Democrats; Dan Miller, Eric Papenfuse and Lewis Butts.
There are some indications that Thompson could be very tough to beat, despite growing dissatisfaction with her policies and her words.
Jim Lee of Susquehanna Polling & Research points out that four years ago, Thompson carried 95 percent of the African-American vote in beating long-time Mayor Stephen Reed.
Lee said there are roughly 3,200 African-American Democratic voters in Harrisburg who have voted in primaries in the past. If Thompson gets two-thirds turnout in that group, she could receive 2,000 votes.
Lee also said that Thompson did get 2,000 signatures on her reelection petition, and that if all those people show up to vote for her at next month's primary, that could be a force to be reckoned with.
"That's not unheard of, right?" asked Lee. "If she gets them out... if she gets 1,500 to 2,000 votes, that could be enough to win in a four-way race."
In the Democratic primary four years ago, there were 6,500 votes cast. Thompson beat Reed roughly 3,500 to 2,500 votes. Lee said it remains to be seen if Thompson's supporters will be as energized this time around.
Nevin Mindlin is also a candidate for mayor. He has registered as an Independent and will be on the November ballot.