"Fire officials estimated the crowd at Kerry's rally in Waterfront Park at between 40,000 and 50,000 people, the largest turnout for a political speech in Portland in at least a decade." - AP
Bush? Well, um, he hasn't:
"Bush met with 300 small business owners Friday morning, and 2,300 supporters in a town hall-style gathering at a Beaverton school that also attracted a few hundred protesters to a police cordon a few hundred yards away." - AP
But to be fair, you significantly reduce turnout when you make it clear that not every one is welcome.