The California Republican Party took several shots at the Democrats and presumptive Democratic presidential nominee and U.S. Sen. Barack Obama (D-Ill.) Tuesday, saying he's unable to bring his party together and unable to put together a policy that's new or workable.

"It's not Hillary Clinton's job to bring the party together," said state GOP chairman Ron Nehring, making reference to word of ongoing bitterness between the Clinton and Obama camps at the convention. "How is he supposed to bring the country together if he can't bring the party together, and is this any way to run a government if you can't run a convention?"

Nehring also said that Obama's image lacks substance, and what substance there is doesn't match what the country needs.

"On taxes, Barack Obama seems to be Walter Mondale," Nehring said, referring to the Democratic presidential candidate in 1984 who was routed by then-President Ronald Reagan. "I don't see any difference."

Nehring also took issue with Obama's energy policy, specifically his opposition to nuclear power and expanded offshore oil drilling.

Obama's claim that offshore oil drilling wouldn't affect gas prices is at odds with the reality that prices would go down if speculators believed more supplies were coming, Nehring said.

Much of Obama's plan for domestic spending would result in a massive expansion of government, Nehring said, which means trouble for people concerned about such topics as health care.

Creating a universal health care plan would bring the same level of service -- or lack thereof -- that people associate with the Department of Motor Vehicles or the post office, he said.

"This is a plan that does not empower individuals, it empowers government," Nehring said. "The policies he's discussing are not very much different from the ideology we've seen with past Democratic candidates, and voters have rejected that ideology."

Nehring mentioned presumptive Republican presidential nominee and U.S. Sen. John McCain (R-Ariz.) only in passing during the conference call for the media.

Speakers at the Democratic National Convention today are expected to focus heavily on domestic issues, and criticize the Republican policies of the last seven years.