Cara Spencer

So how did Tishaura Jones and Cara Spencer move onto the April runoff election? For Jones, it was a strong performance in north St. Louis and parts of south St. Louis. And approval voting may have been key in getting Spencer to the second round.

St. Louis Treasurer Tishaura Jones and Alderwoman Cara Spencer, D-20th Ward, were the top two vote-getters in Tuesday’s mayoral primary race.

Candidates for mayor, comptroller and Board of Aldermen now run without party labels. Voters can choose as many candidates as they want in Tuesday's primary, with the top two vote-getters for each office advancing to April's general election.

All four candidates — utility executive Andrew Jones, Treasurer Tishaura Jones, 20th Ward Alderwoman Cara Spencer and Board of Aldermen President Lewis Reed — agree that crime is the city's No. 1 issue.

One of the notable parts of the debate was frank answers about whom the candidates would support if they don't advance to the April 6 election.

Lewis Reed, Cara Spencer, Tishaura Jones and Andrew Jones are all vying to be St. Louis' next mayor. The primary election is March 2.

St. Louis Alderwoman Cara Spencer joined "St. Louis on the Air" for its series of one-on-one interviews with the candidates running for mayor in the city's March 2 primary. She discussed her background, her crime-fighting plan, her thoughts on the airport and more.

The 20th Ward alderwoman talks about her bid for St. Louis mayor.

Three candidates who planned to run for mayor of St. Louis failed to collect enough signatures to get on the ballot in March.

Candidates for mayor, comptroller and odd-numbered wards at the Board of Aldermen could begin filing the required paperwork to run for office Monday. The 2021 election will be the first under new rules established by the passage of Proposition D on Nov. 3. The posts are now nonpartisan, and voters can select as many candidates as they want in the March primary, a process known as approval voting. The top two advance to the April general election.