Updated 5/31, 12:50 p.m.

More Democrats are backing impeachment proceedings against President Donald Trump after Special Counsel Robert S. Mueller III delivered a statement Wednesday on his report on investigation into Russian meddling in the 2016 election. Three presidential candidates — Sens. Kamala Harris, Cory Booker and Kirsten Gillibrand— joined the pro-impeachment caucus this week even as House Speaker Nancy Pelosi has tried to quiet the growing call in her party.

Mueller said in a news conference Wednesday that while the Justice Department cannot indict the president, “the Constitution requires a process other than the criminal justice system to formally accuse a sitting President of wrongdoing”: impeachment.

Twenty-seven Democrats voiced support for impeachment before Mueller’s resignation; at least 10 more backed impeachment by Thursday morning.  There are concerns among House Democratic leaders that impeachment could prove divisive and imperil Democrats in battleground districts next year. But some leaders in the caucus have pressed the speaker on the matter, including House Judiciary Committee Chairman Jerrold Nadler, the panel with jurisdiction over impeachment. 

Democrats who favor initiating impeachment proceedings point out it will strengthen their legal standing as they grapple with Trump’s resistance to their investigations, including his defiance of their subpoenas. Others say it is a constitutional duty of the legislative branch to properly oversee the executive. Here is our current count of Democratic House members who are pushing for impeachment:

Democrats in favor of initiating impeachment proceedings

1. Rep. Rashida Tlaib of Michigan
2. Rep. Al Green of Texas
3. Rep. Maxine Waters of California
4. Rep. Val Demings of Florida
5. Rep. Steve Cohen of Tennessee
6. Rep. David Cicilline of Rhode Island
7. Rep. Ben Ray Luján of New Mexico
8. Rep. Ted Lieu of California
9. Rep. Jamie Raskin of Maryland
10. Rep. Mark Pocan of Wisconsin
11. Rep. Pramila Jayapal of Washington
12. Rep. Joaquin Castro of Texas
13. Rep. Veronica Escobar of Texas
14. Rep. Jared Huffman of California
15. Rep. Mary Gay Scanlon of Pennsylvania
16. Rep. Joe Neguse of Colorado
17. Rep. Madeleine Dean of Pennsylvania
18. Rep. Ilhan Omar of Minnesota
19. Rep. Diana DeGette of Colorado
20. Rep. Earl Blumenauer of Oregon
21. Rep. Dwight Evans of Pennsylvania
22. Rep. Jackie Speier of California
23. Rep. Alexandria Ocasio-Cortez of New York
24. Rep. Don Beyer of Virginia
25. Rep. Suzanne Bonamici of Oregon
26. Rep. Seth Moulton of Massachusetts
27. Rep. Kathleen Rice of New York
28. Sen. Kamala Harris of California
29. Sen. Cory Booker of New Jersey
30. Sen. Kirsten Gillibrand of New York
31. Rep. Jesus “Chuy” Garcia of Illinois
32. Rep. Bobby Rush of Illinois
33. Rep. Bennie Thompson of Mississippi
34. Rep. Betty McCollum of Minnesota
35. Rep. Chellie Pingree of Minnesota
36. Rep. Danny Davis of Illinois
37. Rep. Greg Stanton of Arizona
38. Rep. G.K. Butterfield of North Carolina
39. Rep. Alan Lowenthal of California
40. Rep. Mike Quigley of Illinois
41. Rep. Mark DeSaulnier of California
42. Rep. Anthony G. Brown of Maryland
43. Rep. John Yarmuth of Kentucky
44. Rep. Juan Vargas of California
45. Rep. Gwen Moore of Wisconsin
46. Rep. Sheila Jackson Lee of Texas
47. Rep. Norma Torres of California
48. Rep. Tom Malinowski of New Jersey

Emily Kopp and Lindsey McPherson contributed to this report