Paul's comments are in response to reports that Judd is signaling that she has decided to challenge Senate Minority Leader Mitch McConnell (R-Ky.), who is up for reelection in 2014.
Paul said he was disappointed that Judd isn't running for office in Scotland. Republicans have repeatedly jabbed Judd for regularly visiting the country.
"I guess I'm disappointed that she's opting not to run for Scotland. You know she lives in Scotland parts of the year," Paul said Friday afternoon in an interview on Sean Hannity's radio show.
Paul's comments follow a fundraising email sent out by the National Republican Senatorial Committee which also noted that Judd lives in Tennessee, not Kentucky. Judd grew up in Kentucky and went to college at the University of Kentucky.
"I just don't see that someone who doesn't live in the state is going to be received that well," Paul added.