House Budget Chairman Paul D. Ryan is scheduled to address the Conservative Political Action Conference in March, the American Conservative Union announced Friday.

The Wisconsin congressman and former Republican vice presidential nominee is a regular at the annual gathering and is considered a potential White House candidate for 2016.

“From the day he was elected, Chairman Ryan has been a strong voice in Congress for pro-growth, free market economic policies and has always been a CPAC favorite,” ACU Chairman Al Cardenas said in a statement.

This will be the 40th annual gathering of conservative activists and is now the largest such gathering in the country every year, according to the ACU. The event, regularly held in Washington, D.C., will take place March 14-16 at the Gaylord National Resort and Convention Center at the National Harbor in Maryland.

Sen. Marco Rubio, R-Fla., another potential presidential contender, has also been invited to speak at the three-day conference. Others invited to address the conference include former Florida Gov. Jeb Bush, Texas Sen. Ted Cruz, former South Carolina Sen. Jim DeMint, New Mexico Gov. Susana Martinez, former Texas Rep. Ron Paul and South Carolina Sen. Tim Scott, who was recently appointed to DeMint’s seat.