The new plan will reduce by 20 percent heat-trapping emissions from truck and bus tailpipes.
Pollsters are now beginning to predict a better election night for Democrats than they were expecting up until now, with the unprecedented campaign the labor movement has mounted getting much of the credit.
Republican Party leaders vowed in their "pledge to America" that, if they take power, they will slash veterans benefits because they are not "paid for."
"Every day is Election Day from now until Nov. 2," said Petra Falcon of Promise Arizona, a group that is mobilizing Latino voter turnout in Arizona.
Meg Whitman's former nanny and housekeeper accused the billionaire Republican candidate of having "treated me like garbage."
Fisher blasted Portman as a tool of Wall Street and a "rubber stamp" for those seeking to return to the "casino" policies that caused the economic crisis.
Manchin's opponent, John Raese, a multi-millionaire (by inheritance), is an extremist Republican who would like to throw everything back to before child labor laws.
Will Latino voters, the fastest-growing segment of the electorate, make a difference come Nov. 2, despite predictions of general low turnout?
Fifty-four percent of voters say they would be more likely to back a candidate who supported health care reform. That number includes 51 percent of independents and 70 percent of Democratic voters.
Boxer said her Republican opponent, while CEO of Hewlett Packard, "laid off 30,000 workers, shipped jobs overseas, and she says she's proud of her record - well, that's her record."