Ron Paul, the two-time winner of the Conservative Political Action Conference straw poll, isn’t attending this year’s conference in Washington because of “travel constraints” – but the Texas congressman hasn’t held a campaign event since Tuesday.

The American Conservative Union, which hosts the annual confab issued a statement last week that Paul’s son, Sen. Rand Paul (R-Ky.), would address the conference in his father’s stead “due to the travel constraints of his Presidential campaign.”