More from Tuesday Obama Conference Call

Obama call with Indiana State Rep. Ryan Dvorak and Teamsters President James Hoffa use Penn's meeting with Colombian officials to question Clinton on trade.

Hoffa: "I think this really hurts her credibility. Mark Penn is an inside insider to her and to Bill Clinton."

Says Clinton can't have a guy on the payroll negotiating with foreign nations and not expect her positions questioned.

Adds Penn is "still calling the shots" in her campaign, has heard he was involved in morning conference call with aides. Calls on her to "end his service" to her campaign.

Says union has brought problem of Penn lobbying for groups that don't support union positions up to Clinton before and she has ignored them.

Defends Obama on Goolsbee, saying not the same situation. Notes Penn was being compensated for discussing trade deal with Colombia, but also veers a bit off track.

"I think that he should make a statement. I don't know what happened in that, but I think he should come up and say what he believes," said Hoffa. "He should certainly clarify whatever happened in that meeting."

Also, asked about Obama's race, Hoffa says, "He's like a Tiger Woods -- he's just a great person who's excited a lot of people.