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Data through Sep 17, 2026Compare members
The Vote Ledger
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James Francis O'Connor

Representative from Montana
HOUSEDEMOCRAT1937–1947ID O000029
Compare
LegislationHEADLINE
79%with Dems
of 342 votes
Nominations
—with Dems
of 0 · confirmations only
All contested
79%with Dems
of 342 · both combined
Steepest move
+24 pts
1943 → 1945
still a Democrat

Career arc

Legislation leads. Each point is one Congress: how often they sided with the Democratic majority on contested bills, resolutions and amendments.

100%75%50%25%0%sides with Democrats ↑sides with Republicans ↓19371943
1945–4679th Congress
Sat as a Democrat
100%with Democrats
of 2 contested votes
Votes for this Congress are open below
Steepest move: 1943 → 1945, +24 pts — while still a Democrat.
Sat as a DemocratSat as a RepublicanVotes available below

Votes

Every roll call before 1973 has no description. These rows carry a date, usually a bill number, how they voted and which side that matched — nothing is filled in by hand.

DateBillVoteTypeCastSided with
Jan 3, 1945H.Res. 5No description in the source recordLEGISLATIONNAYDEM MAJORITY
Jan 3, 1945noneNo description in the source recordLEGISLATIONYEADEM MAJORITY
2 most recent roll calls shown · 2 contested votes scored in the 79th CongressAll votes this Congress →

By policy area

career · legislation
The record carries no policy area for any of these roll calls, so there is nothing to break out.

Service record

5 Congresses
75th · 193779th · 1945
Democrat · House · MT75th–79th
Term datesexact
Members · Montana
JO

James Francis O'Connor

Representative from Montana
HOUSED1937–19475 CONGRESSES
Compare
LegislationHEADLINE
79.2%with Democrats
of 342 votes · 20.8% with Republicans
Nominations—of 0 votes
All contested79%of 342 · combined
Steepest move+24 pts1943→45, as a Democrat

Career arc

10050019371945
1945–46 · 79th · Democrat · of 2 votes100%

Legislation leads. Tap a point to read that Congress.

Votes

Every roll call before 1973 has no description. These rows carry a date, a bill number where one exists, how they voted and which side that matched.
Latest 2 shown · 2 contested votes scored in the 79th

By policy area

career

The record carries no policy area for any of these roll calls.

Service record

75th · 193779th · 1945
Democrat75th–79th

Party switchers

John Alexander LoganD→R · IL · 40thWesley Wade WatkinsD→R · OK · 105thBen Nighthorse CampbellD→R · CO · 104th
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