Rep. Tim Scott (R-S.C.) is slated to speak next week in Tampa. (Chip Somodevilla/Getty Images)

A mix of incumbent Republican lawmakers and candidates vying for House and Senate seats plan to address next week’s Republican National Convention in Tampa.

Convention organizers announced a final slate of congressional speakers Friday, adding to a list of others previously announced.

Two key Senate candidates, Rep. Rick Berg (R-Mont.) and the GOP nominee in Nebraska, Deb Fischer, will address convention delegates. They join Rep. Connie Mack (R-Fla.), who is running in the Florida Senate race, and who was previously announced as a speaker.

Incumbent Sens. Kelly Ayotte (R-N.H.) and Rob Portman (R-Ohio) — key campaign trail surrogates for Mitt Romney — also plan to speak.

Among House candidates, Republicans have invited several, including Rep. Jason Chaffetz (R-Utah), another key Romney surrogate, and Reps. Dan Benishek (R-Mich.), Quico Canseco (R-Tex.), Sean Duffy (R-Wis.) and Tim Scott (R-S.C.). GOP House candidates slated to speak hail from Alabama, California, Indiana, Iowa, Kentucky, North Carolina, Pennsylvania and West Virginia, according to convention organizers.

And then of course there’s Rep. Paul Ryan (R-Wis.), the party’s presumptive vice presidential nominee, who is slated to accept the party’s nomination Wednesday evening.

Follow Ed O’Keefe on Twitter: @edatpost

Read more at PostPolitics and our full coverage of the Republican National Convention