The nation's energy supply powered a back and forth on the presidential campaign trail Tuesday.

Barack Obama was in Ohio, drumming up support for his plan to move the country off foreign oil within ten years.

The Illinois senator took on his Republican challenger, saying that John McCain is "taking a page from the Bush-Cheney playbook."

"Unfortunately, in this election, Senator McCain has proposed an energy plan that's nothing but four more years of the same," said Obama. "You remember that when George [W.] Bush took office, he had an energy policy. He turned to Dick Cheney and he told Cheney, 'Go take care of this.'"

McCain was in Michigan visiting a nuclear power plant, which is part of his solution for reducing foreign oil dependency.

He wants 45 new nuclear power plants by 2030.

Meanwhile, GOP officials tell CNN the McCain camp has requested Vice President Dick Cheney not be in attendance at the Republican National Convention, but some arrangement may be worked out between now and September 1st.

Senator Hillary Clinton says she's going back on the trail for Obama.

Clinton will attend a rally and voter registration event in Las Vegas on Friday. Another event is scheduled in Florida later this month.