Yesterday at the Missouri Ethics Commission:

C221793 01/18/2022 Roorda For Senate Jeffrey Roorda – Revocable Trust 1557 Amber Court Arnold MO 63010 St Louis Police Officers Assoc. Business Manager 1/17/2022 $100,000.00

[emphasis added]

A switch.

In 2014:

State of Missouri – State of Missouri – General Election, November 04, 2014
Official Results
As announced by the Board of State Canvassers on December 03, 2014

Office/Candidate Name Party Votes % of Votes
State Senator – District 22 44 of 44 Precincts Reported
Jeff Roorda Democratic 18,774 45.810%
Paul Wieland Republican 22,208 54.190%
Total Votes: 40,982

[emphasis added]

In 2012:

State of Missouri – State of Missouri – General Election, November 06, 2012
Official Results
As announced by the Board of State Canvassers on December 05, 2012

State Representative – District 113 10 of 10 Precincts Reported
Jeff Roorda Democratic 8,450 53.907%
Dan E. Smith Republican 7,225 46.093%
Total Votes: 15,675

[emphasis added]

In 2010 [pdf]:

Official Election Returns
State of Missouri General Election ­ November 2, 2010 General Election
Tuesday, November 02, 2010
As announced by the Board of State Canvassers on Tuesday, November 30, 2010

[….]
State Representative ­ District 102
Precincts Reporting 16 of
16
Roorda, Jeff DEM 4,964 42.2%
Wieland, Paul REP 5,928 50.3%
Blowers, Richard CST 883 7.5%
Total Votes 11,775
[….]

[emphasis added]

Previously:

House Bills in Jefferson City – March 11 – Union! (March 11, 2009)

Campaign Finance: Jeff Roorda (D) in the 22nd Senate District in 2014 (November 26, 2010)

House Democratic Caucus press conference – Q and A – Jefferson City – January 8, 2014 (January 9, 2014)