Hoffa Jr. was raising hell as early as March about how union-hostile Colorado was. The result was a higher profile for labor leaders, more labor issues in the news, and frankly a better environment for unions post-convention here.
It ain't all balloons and speeches. :D
On edit: here's an old
http://www.denverpost.com/news/ci_5579663">Denver Post article from April 2007:
Labor issue could 'blow up'
Teamsters union leader James Hoffa Jr. joined the debate over Denver's selection as host for the Democratic National Convention by confronting Gov. Bill Ritter at a Washington dinner and promising the issue could "blow up" next summer if Colorado doesn't become more labor-friendly.
"We're very upset about it," the International Brotherhood of Teamsters president said of the Democrats' decision to stage their convention at the nonunion Pepsi Center. In an interview Monday, Hoffa also mentioned Ritter's veto of a pro-union law. "All of labor is upset," Hoffa said.
Hoffa said it is "ironic" that the Republicans are planning their convention in heavily unionized Minneapolis-St. Paul. "Maybe we should flip it and let the Republicans come to Denver," he said.
(snip)
It is not unusual for labor to use the leverage a national Democratic convention brings, observers say. At the 2004 convention, national Democrats helped mediate a labor dispute between police and the city of Boston that stopped a picket line and gained the police a new contract and big raise.