Florida Sen. Marco Rubio will speak at the Conservative Political Action Conference in March, becoming the latest potential 2016 Republican presidential hopeful confirmed to address the annual event.

Rubio joins House Budget Chairman Paul D. Ryan, R-Wis., and Sen. Rand Paul, R-Ky., who the American Conservative Union previously announced would speak at the gathering of conservative activists.

CPAC is a regular stop for members of Congress and presidential candidates alike, and two-time presidential candidate Mitt Romney even used the forum in 2008 to announce the end to his campaign. This year’s event will be held March 14-16 at the National Harbor outside Washington, D.C.