Obama Campaign Slams Clinton Efforts to "Discredit" Nevada Caucuses

Fiery memo from Obama campaign manager Plouffe makes accusations about push polls, robocalls, and “old-style say anything or do anything to win” Clinton politics:

"It is a sad day when Democrats start trying to suppress the vote of other Democrats."

"The Clinton Campaign has been engaged in a systematic effort to discredit the process." Read full memo here.

Plus: Obama campaign releases audio, allegedly of negative advocacy robo-call against Obama, which repeatedly uses his full name (including “Hussein”). Listen to it here.

Clinton campaign's Howard Wolfson: "With regards to negativity, I believe it was Senator Obama's allies in UNITE that ran an ad saying that Hillary Clinton doesn't respect Latinos, which is one of the most outrageous ads I have ever seen or heard."

MORE: B. Clinton, others suggest unfairness in caucus process in apparent attempt to hedge against loss.

In afternoon conference call, senior adviser Karen Hicks says confusion surrounds at-large caucus sites on the Vegas Strip, with some Culinary union members believing they are obligated to support Obama.

Update: Bill Clinton live on Fox News Channel with a rope line interview claims some people have been turned away: “We are just playing by the rules that are here, but I feel pretty good about it.”