| Donalds, Byron | U.S. House | FL | Republican | 1 |
| Donnell, Dexter | U.S. House | AL | Republican | 2 |
| Donnelly, Joseph S | U.S. Senate | IN | Democratic | 2 |
| Donnelly, Timothy M. | U.S. House | CA | Republican | 1 |
| Donovan, Dan | U.S. House | NY | Republican | 1 |
| Donovan, Kerry | U.S. House | CO | Democratic | 1 |
| Donovan, Michelle R.E. | U.S. House | MI | Republican | 1 |
| Donovan, Patrick J | U.S. House | RI | Republican | 1 |
| Donovan, Ricky Thomas Sr | U.S. House | NY | Republican | 1 |
| Dood, Brett R | U.S. House | CA | Republican | 1 |
| Dooling, Joe | U.S. House | MT | Republican | 1 |
| Dorazio, Royce | U.S. House | CA | NPA | 1 |
| Dorey, Krystal | U.S. House | IL | Republican | 1 |
| Dorgan, Byron L | U.S. Senate | ND | Democratic | 1 |
| Dorilas, Rod Mr. | U.S. House | FL | Republican | 1 |
| Dorlon, Kevin Brendan Mr. | U.S. House | NJ | Republican | 1 |
| Dorothy, Dominick | U.S. House | CA | Democratic | 1 |
| Dorothy, Dominick J | U.S. Senate | CA | Democratic | 1 |
| Dorris, Clint | U.S. House | TX | Republican | 1 |
| Dorris, Dale William Mr. II | U.S. House | IN | Democratic | 1 |
| Dosev, Cris | U.S. House | FL | Republican | 1 |
| Dossett, Charles | U.S. House | CA | Republican | 1 |
| Doss, Nathaniel Mr. III | U.S. House | TN | Democratic | 1 |
| Do, Tanner T | U.S. House | TX | Democratic | 1 |
| Dot, Quinci | President | US | Republican | 1 |
| Dotson, Howard | President | US | Democratic | 1 |
| Dotson, Howard R Mr. | U.S. House | CO | Democratic | 1 |
| Doty, Hugh Scott Mr III | U.S. House | IN | Republican | 1 |
| Doty, Sally | U.S. House | MS | Republican | 1 |
| Doucette, Michael Leo Mr | U.S. House | NV | Democratic | 1 |
| Dougall, John | U.S. House | UT | Republican | 1 |
| Dougherty, Sean Jacob | U.S. House | CA | Green | 1 |
| Dougherty, Tyler | U.S. Senate | OK | Democratic | 1 |
| Doug, Jenkins | President | US | Independent | 3 |
| Douglas, Amanda | U.S. House | OK | Democratic | 1 |
| Douglas, Dion A | U.S. House | IN | Democratic | 1 |
| Douglass, Eugene Farley Dr | U.S. House | NC | Republican | 1 |
| Douglass, John Wade | U.S. House | VA | Democratic | 1 |
| Douglas, Steve Douglas | U.S. House | CO | Democratic | 1 |
| Dove, Jeffery Anthony Mr. Jr. | U.S. House | VA | Republican | 1 |
| Dowell, Jeremy J | U.S. House | CO | Democratic | 1 |
| Dowell, Patricia R | U.S. House | IL | Democratic | 1 |
| Dowling, Elvin | U.S. House | FL | Democratic | 1 |
| Dowling, Sandra E Dr | U.S. House | AZ | Republican | 1 |
| Downard, Jeffrey Brian Dr. | President | US | Republican | 1 |
| Downing, Troy | U.S. Senate | MT | Republican | 1 |
| Downing, Troy | U.S. House | MT | Republican | 1 |
| Doxsee, Jeffrey | President | US | NNE | 1 |
| Doyle, Marge | U.S. House | CA | Democratic | 1 |
| Doyle, Michael | U.S. House | PA | Democratic | 1 |
| Doyle, Michael | U.S. House | PA | Republican | 1 |
| Doyle, Stephen | President | US | Independent | 1 |
| Drake, Phillip | President | US | Independent | 1 |
| Drake, Phillip | President | US | Independent | 1 |
| Drake, Phillip Joseph | President | US | Independent | 1 |
| Drake, Ron | U.S. House | IN | Democratic | 1 |
| Draves, Mary F. | U.S. House | MI | UNK | 1 |
| Drew, Danny | U.S. Senate | UT | Democratic | 1 |
| Driggers, Calvin Job | U.S. Senate | NY | Republican | 1 |
| Driggers, Calvin Job | U.S. Senate | FL | Republican | 1 |
| Driscoll, Dan | U.S. House | NC | Republican | 1 |
| Driscoll, Shastity | U.S. House | GA | Democratic | 1 |
| Driskell, Gretchen | U.S. House | MI | Democratic | 1 |
| Driskell, Gretchen | U.S. House | MI | Democratic | 1 |
| D'Silva, Reuben | U.S. House | NV | Democratic | 1 |
| Duarte, John | U.S. House | CA | OTH | 2 |
| Dubiel, Matthew James | U.S. Senate | IL | Republican | 1 |
| Dubois, Alexander Joseph | U.S. House | NY | Republican | 1 |
| Dubose, Bobby B | U.S. House | FL | Democratic | 1 |
| Duckworth, L Tammy | U.S. Senate | IL | Democratic | 2 |
| Dudenhoefer, David Anthony | U.S. House | MI | Republican | 1 |
| Dudley, Charles Brown IV | U.S. House | TN | Republican | 1 |
| Dudley, Joshua Shawn | President | US | W | 1 |
| Dudziak, Martin Joseph Dr. Phd | President | US | NPA | 1 |
| Duenas, Angelica Maria | U.S. House | CA | Democratic | 1 |
| Duerr, James Matthew | U.S. House | TX | Republican | 1 |
| Dues, Justin E | U.S. House | NC | Democratic | 1 |
| Duffy, Sean | U.S. House | WI | Republican | 2 |
| Dugan, Michael | U.S. House | GA | Republican | 1 |
| Dugas, Lee Ann | U.S. House | LA | Democratic | 1 |
| Dugdale, Sean | U.S. House | IN | Democratic | 1 |
| Duke, Brady | U.S. House | FL | Republican | 2 |
| Duke, Jesse Walker | President | US | OTH | 1 |
| Dukes, Rico Cortez | President | US | AIP | 2 |
| Dumdei, Mark | U.S. House | TX | Republican | 1 |
| Dumont, Zachary Steven | U.S. House | NH | Libertarian | 1 |
| Dumornay, Antonio | U.S. House | FL | Independent | 1 |
| Dunbar, Cynthia | U.S. House | VA | Republican | 1 |
| Duncan, Daniel A | U.S. House | SC | Democratic | 1 |
| Duncan, Darren | U.S. House | IL | Republican | 1 |
| Duncan, Hunter Spears | U.S. House | CA | Republican | 1 |
| Duncan, James | U.S. House | NC | Republican | 1 |
| Duncan, Jeffrey D Mr. | U.S. House | SC | Republican | 1 |
| Duncan, John J Rep. Jr. | U.S. House | TN | Republican | 1 |
| Dunham II, Mark London | President | US | Democratic | 1 |
| Dunham, Keenan Wallace | President | US | Libertarian | 2 |
| Dunlap, Harry William | U.S. House | FL | Republican | 1 |
| Dunlap, Jason E Sfc | President | US | Democratic | 1 |
| Dunn, Adam Michael | President | US | Republican | 1 |
| Dunn, Aubrey | U.S. House | NM | NPA | 1 |
| Dunn, Blaine P Hon. | U.S. Senate | VA | Republican | 1 |
| Dunn, Brandon Craig Mr | U.S. House | TX | Republican | 1 |
| Dunn, Harry | U.S. House | MD | Democratic | 1 |
| Dunn, Joseph | U.S. House | CA | Democratic | 1 |
| Dunn, Maria Ms. | U.S. House | TX | Republican | 1 |
| Dunn, Michael Blake | U.S. Senate | AL | Republican | 1 |
| Dunn, Morgan | U.S. House | MS | Republican | 1 |
| Dunn, Neal Patrick MD, Facs | U.S. House | FL | Republican | 1 |
| Dunn, Reagan B | U.S. House | WA | Republican | 1 |
| Dunn, Tom | U.S. House | SC | Republican | 1 |
| Dunn, Victor D | U.S. House | TX | Democratic | 1 |
| Dunn, Victor D. | U.S. Senate | TX | Democratic | 1 |
| Dunson, Leo | U.S. House | NV | Republican | 1 |
| Dunwoody, Stephen Andrae' | U.S. House | CA | Democratic | 1 |
| Dupont, Richard | U.S. House | CT | Republican | 1 |
| Dupree, Johnny L. | U.S. House | MS | Democratic | 1 |
| Dupre, Margot | U.S. Senate | CO | Republican | 1 |
| Dupriest, Karla | U.S. Senate | AL | Republican | 1 |
| Dural, Kevin | U.S. House | TX | W | 1 |
| Duranceau, Elsa | U.S. House | WI | Democratic | 1 |
| Duran, Crisanta Desirae | U.S. House | CO | Democratic | 1 |
| Durant, Michael | U.S. Senate | AL | Republican | 1 |
| Durbano, Douglas | U.S. House | UT | Republican | 1 |
| Durbin, Richard J. | U.S. Senate | IL | Democratic | 1 |
| Durham, Thomas Allen II | U.S. House | NM | Democratic | 1 |
| Durrance, Neil L | U.S. House | TX | Democratic | 1 |
| Dutchess, Lady Donna | U.S. House | AK | W | 1 |
| Duvall, Joshua | U.S. House | NJ | Republican | 1 |
| Dvorak, John | President | US | Republican | 1 |
| Dwyer, Angela Joyce | President | US | Independent | 1 |
| Dwyer, Angela Joyce | U.S. House | WV | Democratic | 1 |
| Dziados, Christopher Ryan | U.S. House | PA | Democratic | 1 |