Political Cybersquatting Or Free Speech?

Although plenty of people have purchased politically linked domain names as a form of protest in the past, now they're being used as part of organized campaigns. In Maryland's 8th district Congressional race, Republican candidate Charles R. Floyd purchased three domain names (VanHollen2004.com/net/org) that one might think would represent Democrat incumbent Rep. Chris Van Hollen. Instead, these sites carry criticism and a bit of mockery. Floyd says Van Hollen should've registered these domain names himself, and previously used the same tactic in the primary. Is this cybersquatting, or is it a fair expression of political speech?