Chief counsel John R. Phillippe Jr. told party Chairman Michael McDonald on Wednesday that such maneuvering could result in the entire Nevada delegation not getting seated at the convention.

Phillippe made clear the letter was "purely advisory" but said it was "high likely" that a committee with jurisdiction over these matters might find such changes improper.

In Iowa, Paul could win a chunk of the 28 delegates available next month at the district-state convention, after finishing third and receiving just one delegate in the January caucus.

Last week, Paul dominated the Louisiana state caucus, though he won just 6 percent of the primary vote, and he could do the same at the June 2 state convention.

Paul campaigners also appear to be focusing on at least three other states - including Maine, Massachusetts and Washington - which could give them enough delegates to at least make some noise on the convention floor.