| Colvin, Jesse | U.S. House | MD | Democratic | 1 |
| Colvin, Nick | U.S. House | MI | Democratic | 1 |
| Colyer, Jeffrey | U.S. House | KS | Republican | 1 |
| Combee, Neil | U.S. House | FL | Republican | 1 |
| Combs, Gwendolynn Millen Mrs. | U.S. House | AR | Democratic | 1 |
| Combs, Jack Lewis Jr. | U.S. House | VA | Democratic | 1 |
| Comer, James | U.S. House | KY | Republican | 1 |
| Comley, Stephen Bradley,Sr | President | US | Republican | 1 |
| Compton, William Dakota | U.S. House | KY | Democratic | 1 |
| Comstock, Barbara | U.S. House | VA | Republican | 2 |
| Conaway, Herb MD | U.S. House | NJ | Democratic | 1 |
| Conaway, Michael Honorable | U.S. House | TX | Republican | 1 |
| Conaway, Robert Dean | U.S. House | CA | Democratic | 1 |
| Condict, Bill | U.S. House | TX | Republican | 1 |
| Condit, James Joseph Mr. Jr | U.S. House | OH | W | 1 |
| Conerly, Chad | U.S. House | LA | Republican | 1 |
| Conforti, Christine Marie | U.S. House | NJ | Democratic | 1 |
| Conforti, Niki | U.S. House | IL | Republican | 2 |
| Conley, Dylan | U.S. House | RI | Democratic | 1 |
| Conley, Kevin Robert Mr. | U.S. House | WA | Independent | 1 |
| Connelly, Chad | U.S. House | SC | Republican | 1 |
| Connely, Michael Lee | U.S. House | NE | Republican | 1 |
| Conner, Lateefah B. | U.S. House | GA | Democratic | 1 |
| Conn, James Henry | U.S. Senate | CA | Green | 1 |
| Connolly, Gerald Edward | U.S. House | VA | Democratic | 1 |
| Connolly, Matthew D | U.S. House | PA | Republican | 1 |
| Connor, Lucas Quentin | President | US | Independent | 1 |
| Connors, Nicholas | U.S. Senate | CT | Republican | 1 |
| Connors, Timothy W II | U.S. House | OH | Republican | 1 |
| Conole, Francis | U.S. House | NY | Democratic | 1 |
| Conoly, Henry | U.S. House | PA | Green | 1 |
| Conover, Rodney Lee | U.S. House | CA | Republican | 1 |
| Conrad, Audrey | President | US | Independent | 1 |
| Conrad, William "Bill" | U.S. Senate | NV | Republican | 1 |
| Conrad, William Bryan | U.S. Senate | NV | Republican | 1 |
| Conroy, Carmela | U.S. House | WA | Democratic | 1 |
| Constant, Christopher | U.S. House | AK | Democratic | 1 |
| Constantino, Anthony Thomas | U.S. House | NY | Republican | 1 |
| Contogiannis, Mary Ann Dr | U.S. House | NC | Republican | 1 |
| Contreras, Maya | U.S. House | NY | Democratic | 1 |
| Conway, Connie | U.S. House | CA | Republican | 1 |
| Conyears-Ervin, Melissa | U.S. House | IL | Democratic | 1 |
| Conyers, Ian | U.S. House | MI | Democratic | 1 |
| Conyers, John | U.S. House | MI | Democratic | 2 |
| Conyers, John III | U.S. House | MI | Democratic | 1 |
| Conyers, John Jr. | U.S. House | MI | Democratic | 1 |
| Cook, Brandon Lamar | U.S. House | WI | Republican | 1 |
| Cooke, John Martin Mr. Jr. | U.S. Senate | NC | Republican | 1 |
| Cooke, Kevin | U.S. House | GA | Republican | 1 |
| Cooke, Rebecca | U.S. House | WI | Democratic | 1 |
| Cooke, Rebecca | U.S. House | WI | Democratic | 2 |
| Cooke, Robert Spencer Mr. IV | President | US | Green | 1 |
| Cookingham, Kevin | U.S. House | CA | Republican | 1 |
| Cook, Merrill Edward Sergeant Jr. | President | US | UN | 2 |
| Cook, Paul | U.S. House | CA | Republican | 1 |
| Cooksey, Marte | President | US | Republican | 1 |
| Cook, Tamarkus | U.S. House | GA | Democratic | 1 |
| Cook, Vaughn R | U.S. House | UT | OTH | 1 |
| Coolidge, Leslie Anne | U.S. House | IL | Democratic | 1 |
| Coons, Christopher A. | U.S. Senate | DE | Democratic | 1 |
| Cooper, Brandon Shaw Mr. | U.S. House | SC | Republican | 1 |
| Cooper, Bridgette L. | U.S. House | MD | Republican | 2 |
| Cooper, Daniel J (I.O.) | U.S. House | TN | Independent | 1 |
| Cooper, David Charles | U.S. House | GA | Democratic | 1 |
| Cooper, Derrick Wadell | President | US | APF | 1 |
| Cooper, James H.S. | U.S. House | TN | Democratic | 1 |
| Cooper, James L III | U.S. House | GA | Green | 1 |
| Cooper, Jimmy | President | US | Independent | 1 |
| Cooper, Kelly | U.S. House | AZ | Republican | 2 |
| Cooper, Michael E Pastor | U.S. Senate | TX | Democratic | 1 |
| Cooper, Randal Dean | U.S. House | TN | Democratic | 1 |
| Cooper, Richard D Mr | President | US | Democratic | 1 |
| Cooperrider, Thad Chalmers | U.S. House | OH | Republican | 1 |
| Cooper, Robert | U.S. House | CA | Democratic | 1 |
| Cooper, Robert Washington Jr | President | US | Independent | 1 |
| Cooper, Scott | U.S. House | NC | Democratic | 1 |
| Cooper, Terri Kay | U.S. House | WA | Republican | 1 |
| Cope, Donald R | President | US | Independent | 1 |
| Cope, Roy Dale | U.S. Senate | TN | Republican | 1 |
| Coplen, Rick | U.S. House | PA | Democratic | 2 |
| Copley, Jimmy Dale II | U.S. Senate | WV | Republican | 1 |
| Coram, Don | U.S. House | CO | Republican | 1 |
| Corazon, Charly | U.S. House | AZ | Republican | 1 |
| Corbett, Keith | U.S. House | NY | Democratic | 1 |
| Corbin-Johnson, Shavonnia | U.S. House | PA | Democratic | 1 |
| Corbin, Michael Allen | U.S. House | GA | Republican | 1 |
| Cordova, Vincent Dean Mr. Jr | President | US | NON | 1 |
| Cordova, Vincent Dean Mr. Jr. | President | US | Independent | 1 |
| Corey, Gene Mr. | U.S. House | CA | Republican | 1 |
| Corey, Matthew McKinnon | U.S. Senate | CT | Republican | 2 |
| Corey, Seth | U.S. House | OH | Democratic | 1 |
| Corker, Robert P Jr | U.S. Senate | TN | Republican | 1 |
| Cornejo, David Neil | U.S. House | HI | Democratic | 1 |
| Cornejo, Gabriel | President | US | Democratic | 1 |
| Cornicelli, Robert Michael Cpt | U.S. House | NY | Republican | 1 |
| Cornwallis, Alex | U.S. House | TX | Democratic | 1 |
| Cornwell, Stephen | U.S. House | NY | Republican | 1 |
| Cornyn, John Sen | U.S. Senate | TX | Republican | 5 |
| Correa, Lou | U.S. House | CA | Democratic | 1 |
| Corrigan, Cait | U.S. House | NY | Republican | 1 |
| Corrigan, Kyle | U.S. Senate | WI | Republican | 2 |
| Corson, Jesse Andrew | President | US | UN | 1 |
| Cortes Barragan, Rodolfo | U.S. House | CA | Green | 1 |
| Cortese, Philip Shaun Mr. | President | US | W | 2 |
| Cortes, Jose Marcos | U.S. House | CA | PFP | 1 |
| Cortes, Jose Santos Mr. Jr. | President | US | Republican | 2 |
| Cortez Masto, Catherine | U.S. Senate | NV | Democratic | 2 |
| Cortina, Raul Ivhan Mr | President | US | Independent | 1 |
| Cortney, Michael James | U.S. House | WA | Republican | 1 |
| Corvalan, Ruben | U.S. House | TX | Libertarian | 1 |
| Corvi, Steven J | U.S. House | RI | Republican | 1 |
| Cosgrove, Kathleen M Ms | U.S. House | TN | Independent | 1 |
| Cosme, Sebastian | President | US | Independent | 1 |
| Cosme, Sebastian Oscar | President | US | AIC | 1 |
| Cosner, Shawn Paul | U.S. House | WV | W | 1 |
| Coson, Gary Lynn | U.S. Senate | MN | Republican | 1 |
| Costa, Dianne Salvagno | U.S. House | TX | Republican | 1 |
| Costa, Jim Mr. | U.S. House | CA | Democratic | 1 |
| Costa, Michael | U.S. Senate | RI | Independent | 1 |
| Costa, Michael J | U.S. Senate | RI | Democratic | 1 |
| Costello, David Allen | U.S. Senate | ME | Democratic | 1 |
| Costello, Jerry F | U.S. House | IL | Democratic | 1 |
| Costello, Regis J | President | US | Independent | 1 |
| Costello, Ryan A | U.S. House | PA | Republican | 2 |
| Costello, Scott L Mr | U.S. House | IN | Democratic | 1 |
| Cota, Jackie S | U.S. House | CA | Republican | 1 |
| Cotham, Patricia A | U.S. House | NC | Democratic | 1 |
| Cotter Smasal, Missy | U.S. House | VA | Democratic | 1 |
| Cotter, William Biddle | U.S. House | NY | Republican | 1 |
| Cottillion, Adam D Mr. | President | US | Independent | 1 |
| Cotton, Thomas | U.S. Senate | AR | Republican | 4 |
| Cottrell, Dana | U.S. House | FL | Democratic | 1 |
| Coughlin, Kevin | U.S. House | OH | Republican | 3 |
| Coulombe, Chris Mr | U.S. House | CA | Republican | 1 |
| Coulter, Joshua | President | US | Independent | 1 |
| Counsil, Gordon Joe | U.S. House | ID | UNK | 1 |
| Courser, Amy Ryan | U.S. House | OR | Republican | 1 |
| Courtney, Joseph D | U.S. House | CT | Democratic | 1 |
| Covarrubias, Phil | U.S. House | TX | Republican | 1 |
| Covell, Carolyn Elizabeth Mrs | U.S. House | CA | Republican | 1 |
| Covert, Michael | U.S. House | SC | Republican | 1 |
| Cowan, Daniel | U.S. House | GA | Republican | 1 |
| Cowan, John Dr. | U.S. House | GA | Republican | 1 |
| Cowans, Alex D | President | US | Democratic | 1 |
| Cowden, Anthony 'Tony' | U.S. House | NC | Republican | 1 |
| Cowen, Martin Lindsey Mr. III | U.S. House | GA | Libertarian | 1 |
| Cox, Adrian J 1999 | President | US | Democratic | 1 |
| Cox, Amy | U.S. House | OH | Democratic | 1 |
| Cox, Chris | U.S. House | SC | Republican | 1 |
| Cox, Christopher Hon. | U.S. House | CA | Republican | 1 |
| Cox, Dan | U.S. House | MD | Republican | 1 |
| Cox, Donald Raymond | U.S. House | NC | Republican | 1 |
| Cox, Steve | U.S. House | CA | Independent | 1 |
| Cox, Steven Jewell Isom | U.S. Senate | KY | Democratic | 1 |
| Cox, Terrence John (Tj) | U.S. House | CA | Democratic | 1 |
| Cox, Thomas Phillip | U.S. House | VA | Democratic | 1 |
| Cox-Wardrick, Elliott Dwight | U.S. House | VA | Independent | 1 |
| Cozzens, Jeff | U.S. House | NH | Republican | 1 |
| Crabb, Vincent Darrell | U.S. House | TX | Republican | 1 |
| Craft, Frank S | U.S. House | FL | Libertarian | 1 |
| Crafts, Dale | U.S. House | ME | Republican | 2 |
| Craig, Angela Dawn | U.S. House | MN | Democratic | 1 |
| Craig, Christine E | U.S. House | PA | Democratic | 1 |
| Craighill-Middleton, Anduin Elim | U.S. House | NC | Democratic | 1 |
| Craig, James | U.S. Senate | MI | Republican | 1 |
| Craig, Jared | U.S. House | GA | Republican | 1 |
| Craig, Jared B Esq | U.S. Senate | GA | Republican | 1 |
| Craig, Rufus Holt | U.S. House | LA | Libertarian | 1 |
| Craig, Thomas James Mr Jr | U.S. House | OK | Republican | 1 |
| Crain, Jo | U.S. Senate | MO | Green | 1 |
| Crain, Mark Brewer | U.S. House | TN | Independent | 1 |
| Cramer, Kevin Mr. | U.S. Senate | ND | Republican | 5 |
| Cramer, Robert E "Bud" Jr | U.S. House | AL | Democratic | 1 |
| Cramer, Thomas Allen | U.S. House | WA | Democratic | 1 |
| Crandall, Terry Lawrence | U.S. House | CA | NPA | 1 |
| Crane, Elenore Casey | U.S. House | NH | Republican | 1 |
| Crane, Eli | U.S. House | AZ | Republican | 3 |
| Crane, Michael Robert | U.S. House | GA | Republican | 2 |
| Crank, Jeff | U.S. House | CO | Republican | 1 |
| Crapo, Michael D | U.S. Senate | ID | Republican | 1 |
| Cravaack, Raymond J Mr. | U.S. House | MN | Republican | 1 |
| Craven, Michael Andrew | U.S. House | KY | Republican | 1 |
| Craven , Mike | U.S. House | KY | Republican | 3 |
| Cravens, Maurice Randall, II | U.S. House | KY | W | 1 |
| Crawford, Eric Alan Rick | U.S. House | AR | Republican | 2 |
| Crenshaw, Ander | U.S. House | FL | Republican | 1 |
| Crenshaw, Daniel | U.S. House | TX | Republican | 1 |
| Creviere, Jean-Michel | U.S. House | MI | Green | 1 |
| Crews, Marcellus | U.S. Senate | MD | Democratic | 1 |
| Crichton, Oreta Tufaga-Mapu | U.S. House | AS | Democratic | 1 |
| Crim, Larry R | U.S. Senate | TN | Republican | 1 |
| Cripe, Mark | U.S. House | CA | Republican | 1 |
| Crispi, Michael | U.S. House | NJ | Republican | 1 |
| Crist, Charlie Joseph | U.S. House | FL | Democratic | 1 |
| Cristiani, Calen Dean | U.S. House | FL | Democratic | 1 |
| Crist, Terry Vincent Mr. | U.S. House | OH | Republican | 2 |
| Criswell, Jeff | U.S. House | GA | Republican | 1 |
| Criswell, Jefferson Edward | U.S. House | GA | Republican | 1 |
| Crnkovich, Karen | U.S. House | KS | Republican | 1 |
| Crochetiere, Bruce | U.S. House | NH | Republican | 1 |