As of the start of the 119th United States Congress in January 2025, there are 45 Democratic senators in the U.S. Senate. In addition, there are 2 independents who caucus with the Democrats, making the effective Democratic caucus total 47. The Republicans hold the majority with 53 seats
. Summary:
- Democratic Party senators: 45
- Independent senators caucusing with Democrats: 2
- Total Democratic caucus: 47
- Republican Party senators: 53
- Total Senate seats: 100
