Democratic presidential candidate Barack Obama is claiming a "big victory" after winning 13 states in yesterday's Super Tuesday contests.
In a news conference Wednesday, Obama said he's been tested by rival Hillary Rodham Clinton's hard-driving campaign. He says the campaign has "pulled out all the stops" against him, and that his campaign has shown it can "take a punch."
Asked about Clinton's vulnerability to Republican attacks, Obama says Clinton's research team is "about as good as anybody's out there" but predicted the GOP would have "a whole dump truck" of dirt to unload on her.
While Obama won more states than Clinton, Clinton rounded up more delegates, for a total of 845 to Obama's 765, by the latest count. Delegate tabulations continue.
On Saturday, Louisiana, Washington state and Nebraska hold votes for Democrats. And on Tuesday, more than 168 Democratic delegates will be at stake as Maryland, Virginia and the District of Columbia hold their primaries.