Virginia Attorney General Ken Cuccinelli (R) and House Majority Leader Eric Cantor (R-Va.) are joining several Republican presidential hopefuls in speaking to conservative activists at the Values Voter Summit in the District.

Cantor addressed the crowd Friday morning along with House Speaker John Boehner (R-Ohio). Cuccinelli will speak Friday night about the “importance of preserving liberty and his efforts to defend the Constitution,’’ according to his political director Noah Wall. 

Several presidential candidates — including Mitt Romney, Rick Perry, Herman Cain, Michele Bachmann and Rick Santorum — are gathering at the Omni Shoreham Hotel for the sixth annual Values Voter Summit. The three-day event is sponsored by the Family Research Council, Heritage Foundation and Liberty University, among others.

Hundreds of activists attend the event, which includes a presidential straw poll, an early predictor of which candidate may win the endorsement of Christian conservatives.

Gov. Bob McDonnell (R), mentioned as possible vice presidential contender, spoke last year but is not attending this year.