Fighting to the end, President Barack Obama on Friday devoted shrinking campaign time for one endangered Virginia Democrat, calling his bid a national test case of whether a person of integrity can win.
The president, bracing for an election beatdown in a prime electoral atmosphere for Republicans, plunged into a final weekend of campaigning, undeterred by the somber news of a new terrorist threat. He implored a young, raucous crowd in this college town to rally behind first-term Rep. Tom Perriello, who has loyally backed key parts of the president's agenda.
"The reason I am here is because in this day and age, let's face it, political courage is hard to come by," Obama said to thousands gathered outside on a crisp autumn night. "When you're a first-term congressman, the easiest thing to do is make your decisions based on the polls ... That's not who Tom is."
The stop was meant as more than a boost for Perriello, who is in a fierce election fight against Republican state Sen. Robert Hurt. The president also wanted to send a message to fellow Democrats and ambivalent supporters that he would stand with those who took tough votes on health care and stimulus spending _ and his party should not run away from them.
Shadowing it all: fresh news of a weak economy still struggling to create jobs.
Predictions of a Republican blowout dogged the president and his party, as voters looked to take it out on incumbents over joblessness, bailouts and the toxic state of politics. Republicans were looking to recover from recent electoral lashings by claiming the House and making big gains in the Senate, governors' mansions and state legislatures.
The tone of the day, meanwhile, had changed considerably before Obama arrived. From Washington, he declared that officials had uncovered a "credible terrorist threat" of U.S.-bound packages containing explosives aboard cargo jets. Obama spokesman Robert Gibbs said the president's weekend political travels would not be altered as the terror probe continues. Indeed, by the time of the evening rally, Obama had his sleeves rolled up in full-fledged campaign mode.
The White House has sought to win the expectations game, conceding the election will yield more "parity" between the parties in Washington, as Obama adviser David Axelrod put it, and pressuring to Republicans to show more leadership.
Obama, at the rally, challenged voters to defy cynical politics. "We say we want integrity from our elected officials," Obama said. "But you know what, this is a test case right here, in Charlottesville. This man has integrity."
In a nod to the pressures facing Perriello, the two acknowledged they don't always agree. Perriello's opponent, Hurt, said earlier in the day that Obama was coming to town to reward the congressman as a "loyal foot soldier."
Obama set out on his final round of campaigning for Tuesday's election as official tabulations showed more than 11.6 million voters had already cast ballots, including more than 2 million in California, 1.6 million in Florida and 1.2 million in Texas.
There also were high totals in other states where races were particularly intense, including nearly 675,000 in Colorado, where Sen. Michael Bennet is in a close contest with Republican challenger Ken Buck.
In Nevada, more than 339,000 ballots had been cast in an early voting period, shattering the total of 244,000 in the midterm election four years ago. The state has the nation's most closely watched Senate election, pitting Majority Leader Harry Reid against Republican Sharron Angle, who won her nomination on the strength of tea party support.
The results of the elections seem sure to alter the course of Obama's presidency and change the debate on issues that matter to tens of millions of people: taxes, education, immigration, energy and federal spending.
In a final pre-election economic snapshot, the government reported that national output grew slightly faster in the past three months, at a rate of 2 percent. Yet that's not enough to produce enough jobs to reduce high unemployment.
Obama, speaking earlier at a metal company in Maryland to push one of his job growth proposals, pledged anew to speed up the recovery.
Both sides geared up for their final get-out-the-vote pushes in key states. Democratic House Speaker Nancy Pelosi, in a fundraising e-mail, said the outcome of many races was too close to determine and "that story will be written in this weekend."
In Washington, Democrats asked congressional staffers to head to West Virginia to help Gov. Joe Manchin win a tight Senate race. Republicans sought volunteers to head to Ohio to help defeat Gov. Ted Strickland.
The two parties stepped up their efforts to get voters to the polls, and saw bright spots in early voting results.
Jen O'Malley Dillon, executive director of the Democratic National Committee, said more sporadic-voting Democrats _ and first-timers _ were casting ballots than sporadic-voting Republicans. "Our programs are working," she said.
Republicans, meanwhile, were arming volunteers in Nevada and Colorado this weekend with iPads to collect information in real time from voters as they knocked on some 300,000 doors in each state.
In Virginia, Obama was returning to the state that made him the first Democrat to score a presidential win there since 1964. Perriello won _ barely _ in highly favorable conditions two years ago but is now fighting fiercely to keep the job.
Obama on Saturday will be campaigning in Connecticut, Pennsylvania and Illinois, ending with an evening event in his hometown Chicago in hopes of recapturing some of the magic of his own presidential campaign. His last big event will be Sunday in Ohio before he returns to Washington for a scary scene that, by design, has nothing to do the election: Halloween with his daughters.
Associated Press writers Julie Hirschfeld Davis, David Espo and Darlene Superville in Washington and Robert Lewis in Richmond, Va., contributed to this report.