With Mayor Rahm Emanuel not seeking a third term more people are considering jumping in the wide-open 2019 Chicago City Hall race – where there is no obvious front-runner.

On Monday, Ald. Rod Sawyer (6th) said Cook County Board President Toni Preckwinkle will announce this week – possibly Thursday – that she is running for mayor.

Earlier on Monday, William Daley, the son and brother of Chicago mayors, a former chief of staff to former President Barack Obama and Commerce Secretary under former President Bill Clinton, who chaired Al Gore’s presidential campaign,  announced his candidacy.

Sun-Times columnist Mark Brown interviewed Daley, who told him, “to be the mayor, that would be the greatest.”

With Daley’s media blitz kicking off the mayoral political week, Sun-Times columnist Lynn Sweet takes a look at the state of the evolving race.

Last week, a draft movement launched by Rep. Luis Gutierrez (D-Ill.) was aimed at convincing Cook County board member Jesus “Chuy” Garcia to jump in the race. Garcia’s petitions started circulating on Saturday.

While Illinois Comptroller Susana Mendoza is mulling a bid, Democratic activist and donor Martin Castro said last week he was launching a drive to persuade her to run.

Arne Duncan, the former Chicago public schools chief and Obama’s Education Secretary, is not interested in the job, a spokesman said.

More than 20 candidates are in the race or seriously looking at it.

The Sun-Times is tracking declared and prospective mayoral candidates. This list will be updated in the coming days and weeks. Please keep checking.