# List of new members of the 115th United States Congress

The 115th United States Congress began on January 3, 2017. There were seven new senators (five Democrats, two Republicans) and 52 new representatives (25 Democrats, 27 Republicans), as well as one new delegate (a Republican), at the start of its first session. Additionally, five senators (two Democrats, three Republicans) and 15 representatives (six Democrats, nine Republicans) took office on various dates in order to fill vacancies during the 115th Congress before it ended on January 3, 2019.
Due to court-ordered redistricting in three states, three representatives were elected from newly established congressional districts.
The co-presidents of the House Democratic freshman class were Nanette Barragán of California, Val Demings of Florida, and Donald McEachin of Virginia, while the president of the House Republican freshman class was Jack Bergman of Michigan. Additionally, the Democratic Freshmen Leadership Representative was Colleen Hanabusa of Hawaii (who was elected during the 114th Congress), and the Republican's freshmen liaison was Paul Mitchell of Michigan.

## Senate
### Took office January 3, 2017

| State | Senator | Seniority | Switched party | Prior background | Birth year |
| California | Kamala Harris (D) | 5th (98th overall) | No Open seat; replaced Barbara Boxer (D) | Attorney General of California San Francisco District Attorney | 1964 |
| Illinois | Tammy Duckworth (D) | 3rd (96th overall) | Yes Defeated Mark Kirk (R) | U.S. House of Representatives Assistant Secretary of Veterans Affairs Illinois Director of Veterans' Affairs U.S. Army Lieutenant Colonel | 1968 |
| Indiana | Todd Young (R) | 2nd (95th overall) | No Open seat; replaced Dan Coats (R) | U.S. House of Representatives Orange County assistant deputy prosecutor U.S. Marine Corps Captain | 1972 |
| Louisiana | John Kennedy (R) | 6th (99th overall) | No Open seat; replaced David Vitter (R) | Louisiana State Treasurer Louisiana Secretary of Revenue | 1951 |
| Maryland | Chris Van Hollen (D) | 1st (94th overall) | No Open seat; replaced Barbara Mikulski (D) | U.S. House of Representatives Maryland Senate Maryland House of Delegates | 1959 |
| Nevada | Catherine Cortez Masto (D) | 7th (100th overall) | No Open seat; replaced Harry Reid (D) | Nevada Attorney General | 1964 |
| New Hampshire | Maggie Hassan (D) | 4th (97th overall) | Yes Defeated Kelly Ayotte (R) | Governor of New Hampshire Majority Leader of the New Hampshire Senate | 1958 |

### Took office during the 115th Congress

| State | Senator | Took office | Switched party | Prior background | Birth year |
| Alabama | Luther Strange (R) | February 9, 2017 | No Appointed; replaced Jeff Sessions (R) | Attorney General of Alabama | 1953 |
| Alabama | Doug Jones (D) | January 3, 2018 | Yes Replaced Luther Strange (R), who was defeated in a primary | U.S. Attorney for Northern Alabama Assistant U.S. Attorney | 1954 |
| Minnesota | Tina Smith (DFL) | January 3, 2018 | No Appointed; replaced Al Franken (DFL) | Lieutenant Governor of Minnesota Chief of staff to Governor Mark Dayton Chief of staff to Mayor R. T. Rybak | 1958 |
| Mississippi | Cindy Hyde-Smith (R) | April 9, 2018 | No Appointed; replaced Thad Cochran (R) | Mississippi Commissioner of Agriculture and Commerce Mississippi State Senate | 1959 |
| Arizona | Jon Kyl (R) | September 5, 2018 | No Appointed; replaced John McCain (R) | U.S. Senate U.S. House of Representatives | 1942 |

## House of Representatives
### Took office January 3, 2017

| District | Representative | Switched party | Prior background | Birth year |
| Arizona 1 | Tom O'Halleran (D) | No Open seat; replaced Ann Kirkpatrick (D) | Arizona Senate Arizona House of Representatives | 1946 |
| Arizona 5 | Andy Biggs (R) | No Open seat; replaced Matt Salmon (R) | President of the Arizona Senate Arizona House of Representatives | 1958 |
| California 17 | Ro Khanna (D) | No Defeated Mike Honda (D) | Lawyer | 1976 |
| California 20 | Jimmy Panetta (D) | No Open seat; replaced Sam Farr (D) | Monterey County deputy district attorney U.S. Navy Reserve | 1969 |
| California 24 | Salud Carbajal (D) | No Open seat; replaced Lois Capps (D) | Santa Barbara County Board of Supervisors U.S. Marine Corps Reserve | 1964 |
| California 44 | Nanette Barragán (D) | No Open seat; replaced Janice Hahn (D) | Hermosa Beach City Council | 1976 |
| California 46 | Lou Correa (D) | No Open seat; replaced Loretta Sanchez (D) | California State Senate Orange County Board of Supervisors California State Assembly | 1958 |
| Delaware at-large | Lisa Blunt Rochester (D) | No Open seat; replaced John Carney (D) | Delaware Secretary of Labor CEO of the Wilmington Urban League | 1962 |
| Florida 1 | Matt Gaetz (R) | No Open seat; replaced Jeff Miller (R) | Florida House of Representatives | 1982 |
| Florida 2 | Neal Dunn (R) | Yes Open seat; replaced Gwen Graham (D) | Surgeon U.S. Army Major | 1953 |
| Florida 4 | John Rutherford (R) | No Open seat; replaced Ander Crenshaw (R) | Sheriff of Jacksonville | 1952 |
| Florida 5 | Al Lawson (D) | No Defeated Corrine Brown (D) in a primary | Minority Leader of the Florida Senate Florida House of Representatives | 1948 |
| Florida 7 | Stephanie Murphy (D) | Yes Defeated John Mica (R) | National security specialist | 1978 |
| Florida 9 | Darren Soto (D) | No Open seat; replaced Alan Grayson (D) | Florida Senate Florida House of Representatives | 1978 |
| Florida 10 | Val Demings (D) | New seat | Chief of the Orlando Police Department | 1957 |
| Florida 13 | Charlie Crist (D) | Yes Defeated David Jolly (R) | Governor of Florida Florida Attorney General Florida Education Commissioner Florida Senate | 1956 |
| Florida 18 | Brian Mast (R) | Yes Open seat; replaced Patrick Murphy (D) | National Nuclear Security Administration U.S. Army EOD specialist | 1980 |
| Florida 19 | Francis Rooney (R) | No Open seat; replaced Curt Clawson (R) | U.S. Ambassador to the Holy See | 1953 |
| Georgia 3 | Drew Ferguson (R) | No Open seat; replaced Lynn Westmoreland (R) | Mayor of West Point Dentist | 1966 |
| Illinois 8 | Raja Krishnamoorthi (D) | No Open seat; replaced Tammy Duckworth (D) | Campaign staffer Lawyer | 1973 |
| Illinois 10 | Brad Schneider (D) | Yes Defeated Bob Dold (R) | U.S. House of Representatives | 1961 |
| Indiana 3 | Jim Banks (R) | No Open seat; replaced Marlin Stutzman (R) | Indiana Senate U.S. Navy Reserve Lieutenant | 1979 |
| Indiana 9 | Trey Hollingsworth (R) | No Open seat; replaced Todd Young (R) | Entrepreneur | 1983 |
| Kansas 1 | Roger Marshall (R) | No Defeated Tim Huelskamp (R) in a primary | Obstetrician U.S. Army Reserve Captain | 1960 |
| Louisiana 3 | Clay Higgins (R) | No Open seat; replaced Charles Boustany (R) | Lafayette City Marshal St. Landry Sheriff's Office Louisiana National Guard Staff Sergeant | 1961 |
| Louisiana 4 | Mike Johnson (R) | No Open seat; replaced John Fleming (R) | Louisiana House of Representatives | 1972 |
| Maryland 4 | Anthony Brown (D) | No Open seat; replaced Donna Edwards (D) | Lieutenant Governor of Maryland Maryland House of Delegates U.S. Army Reserve Colonel | 1961 |
| Maryland 8 | Jamie Raskin (D) | No Open seat; replaced Chris Van Hollen (D) | Maryland Senate | 1962 |
| Michigan 1 | Jack Bergman (R) | No Open seat; replaced Dan Benishek (R) | U.S. Marine Corps Lieutenant General | 1947 |
| Michigan 10 | Paul Mitchell (R) | No Open seat; replaced Candice Miller (R) | St. Clair City Council Owner of Ross Medical Education Center | 1956 |
| Minnesota 2 | Jason Lewis (R) | No Open seat; replaced John Kline (R) | Radio personality | 1955 |
| Nebraska 2 | Don Bacon (R) | Yes Defeated Brad Ashford (D) | Assistant professor at Bellevue University U.S. Air Force Brigadier General | 1963 |
| Nevada 3 | Jacky Rosen (D) | Yes Open seat; replaced Joe Heck (R) | Computer software developer | 1957 |
| Nevada 4 | Ruben Kihuen (D) | Yes Defeated Cresent Hardy (R) | Nevada Senate Nevada Assembly | 1980 |
| New Hampshire 1 | Carol Shea-Porter (D) | Yes Defeated Frank Guinta (R) | U.S. House of Representatives | 1952 |
| New Jersey 5 | Josh Gottheimer (D) | Yes Defeated Scott Garrett (R) | Counselor to FCC Chair Julius Genachowski Vice President of Burson Cohn & Wolfe Speechwriter for President Bill Clinton | 1975 |
| New York 3 | Thomas Suozzi (D) | No Open seat; replaced Steve Israel (D) | Nassau County Executive Mayor of Glen Cove | 1962 |
| New York 13 | Adriano Espaillat (D) | No Open seat; replaced Charles Rangel (D) | New York State Senate New York State Assembly | 1954 |
| New York 19 | John Faso (R) | No Open seat; replaced Chris Gibson (R) | Minority Leader of the New York State Assembly | 1952 |
| New York 22 | Claudia Tenney (R) | No Open seat; replaced Richard Hanna (R) | New York State Assembly | 1961 |
| North Carolina 13 | Ted Budd (R) | New seat | Business owner | 1971 |
| Pennsylvania 8 | Brian Fitzpatrick (R) | No Open seat; replaced Mike Fitzpatrick (R) | Assistant U.S. Attorney Federal Bureau of Investigation | 1973 |
| Pennsylvania 16 | Lloyd Smucker (R) | No Open seat; replaced Joe Pitts (R) | Pennsylvania State Senate West Lampeter Township Board of Supervisors | 1964 |
| Tennessee 8 | David Kustoff (R) | No Open seat; replaced Stephen Fincher (R) | U.S. Attorney for Western Tennessee | 1966 |
| Texas 15 | Vicente Gonzalez (D) | No Open seat; replaced Rubén Hinojosa (D) | Lawyer | 1967 |
| Texas 19 | Jodey Arrington (R) | No Open seat; replaced Randy Neugebauer (R) | Vice Chancellor of Texas Tech University Chief of staff to the Federal Deposit Insurance Corporation Special Assistant to President George W. Bush | 1972 |
| Virginia 2 | Scott Taylor (R) | No Open seat; replaced Scott Rigell (R) | Virginia House of Delegates U.S. Navy SEAL | 1979 |
| Virginia 4 | Donald McEachin (D) | New seat | Virginia Senate Virginia House of Delegates | 1961 |
| Virginia 5 | Tom Garrett (R) | No Open seat; replaced Robert Hurt (R) | Virginia Senate Louisa County Commonwealth's Attorney | 1972 |
| Washington 7 | Pramila Jayapal (D) | No Open seat; replaced Jim McDermott (D) | Washington State Senate | 1965 |
| Wisconsin 8 | Mike Gallagher (R) | No Open seat; replaced Reid Ribble (R) | Congressional staffer U.S. Marine Corps Captain | 1984 |
| Wyoming at-large | Liz Cheney (R) | No Open seat; replaced Cynthia Lummis (R) | Deputy Assistant Secretary of State Co-chair of the Iran Syria Policy and Operations Group | 1966 |

#### Non-voting members

| District | Image | Delegate | Switched party | Prior background | Birth year | Ref |
| Puerto Rico at-large | | Jenniffer González (NP/R) | No/Yes Open seat; replaced Pedro Pierluisi (NP/D) | Speaker of the Puerto Rico House of Representatives Chair of the Republican Party of Puerto Rico | 1976 | |

### Took office during the 115th Congress

| District | Representative | Took office | Switched party | Prior background | Birth year |
| Kansas 4 | Ron Estes (R) | April 25, 2017 | No Succeeded Mike Pompeo (R) | Kansas State Treasurer Sedgwick County Treasurer | 1956 |
| Montana at-large | Greg Gianforte (R) | June 21, 2017 | No Succeeded Ryan Zinke (R) | Co-founder of RightNow Technologies Electrical engineer | 1961 |
| Georgia 6 | Karen Handel (R) | June 26, 2017 | No Succeeded Tom Price (R) | Georgia Secretary of State Fulton County Board of Commissioners | 1962 |
| South Carolina 5 | Ralph Norman (R) | June 26, 2017 | No Succeeded Mick Mulvaney (R) | South Carolina House of Representatives | 1953 |
| California 34 | Jimmy Gomez (D) | July 11, 2017 | No Succeeded Xavier Becerra (D) | California State Assembly Labor organizer | 1974 |
| Utah 3 | John Curtis (R) | November 13, 2017 | No Succeeded Jason Chaffetz (R) | Mayor of Provo | 1960 |
| Pennsylvania 18 | Conor Lamb (D) | April 12, 2018 | Yes Succeeded Tim Murphy (R) | Assistant U.S. Attorney U.S. Marine Corps Major | 1984 |
| Arizona 8 | Debbie Lesko (R) | May 7, 2018 | No Succeeded Trent Franks (R) | Arizona Senate Arizona House of Representatives | 1958 |
| Texas 27 | Michael Cloud (R) | July 10, 2018 | No Succeeded Blake Farenthold (R) | Business owner | 1975 |
| Ohio 12 | Troy Balderson (R) | September 5, 2018 | No Succeeded Pat Tiberi (R) | Ohio Senate Ohio House of Representatives | 1962 |
| New York 25 | Joseph Morelle (D) | November 13, 2018 | No Succeeded Louise Slaughter (D) | Majority Leader of the New York State Assembly Monroe County Legislature | 1957 |
| Oklahoma 1 | Kevin Hern (R) | November 13, 2018 | No Open seat; replaced Jim Bridenstine (R) | Businessman | 1961 |
| Pennsylvania 7 | Mary Gay Scanlon (D) | November 13, 2018 | Yes Succeeded Pat Meehan (R) | Wallingford-Swarthmore School Board | 1959 |
| Pennsylvania 15 | Susan Wild (D) | November 27, 2018 | Yes Succeeded Charlie Dent (R) | Solicitor of Allentown | 1957 |
| Michigan 13 | Brenda Jones (D) | November 29, 2018 | No Succeeded John Conyers (D) | President of the Detroit City Council | 1959 |