Obama, Romney take aim at key Midwestern swing states HILLIARD, Ohio (Reuters) - President Barack Obama and Republican Mitt Romney made late pitches in the political battlegrounds of the upper Midwest on Friday, a region likely to decide the winner in next week's closely fought election for the White House. In dueling campaign appearances in the swing states of Ohio and Wisconsin, the two contenders battled over the economy on a day when the government reported the jobless rate ticked up to 7.9 percent in October but that employers stepped up their hiring. In Wisconsin, where polls show Romney trailing Obama, the Republican laid out the case for his election and said the jobs report was more evidence of the president's failing leadership. Romney said in a suburb of Milwaukee after getting the endorsement of former Green Bay Packers star quarterback Bart Starr. Romney stepped up his attack at two stops in Ohio, including a huge rally in West Chester, a community near Cincinnati, where Kid Rock warmed up the crowd with the Romney signature song, "Born Free," and a host of Republican leaders spoke. "Your state is the one I'm counting on," Romney told thousands of cheering supporters on a chilly night. This is the one we have to win. With four days left until Tuesday's election, Obama and Romney are essentially tied in national polls, but the president holds a slight edge in the battleground states that are crucial to gaining the 270 electoral votes needed to win. On a stop in Ohio, the most heavily contested swing state and a vital cog in the electoral math for both candidates, Obama said the jobs report was evidence "we have made real progress." Obama, whose federal rescue of the auto industry has been popular in a state where one in eight jobs is auto industry-related, hammered Romney for a recent statement that Chrysler planned to move Jeep production to China. Chrysler has refuted that, noting it was adding workers to build more Jeeps in Ohio, and the two campaigns have aired advertisements over the issue. Obama said Romney, who opposed a government auto bailout, was trying to scare workers in a desperate bid to make up ground in Ohio. I know we're close to an election, but this isn't a game. These are people's jobs, these are people's lives," Obama said. You don't scare hard-working Americans just to scare up some votes. Obama's advisers said the Jeep controversy, which has featured heavily in the state's media, had helped the president solidify his lead in Ohio. "We all felt prior to this week we were in very solid shape in the state of Ohio, and our expectation is that our position's been strengthened by this," White House senior adviser David Plouffe told reporters. While campaigning in the Midwestern heartland, Obama's team was casting an eye on the Northeast where New York-area motorists were scrambling for gasoline on a third day of panic buying after the storm Sandy devastated the area. Obama won plaudits for turning his attention to storm relief earlier this week, but growing frustration among victims could hurt the Democrat if the federal response is deemed unsatisfactory. A variety of state polls show Obama still has slight leads in four states - Ohio, Iowa, Nevada and Wisconsin - that would give him 277 electoral votes, barring any surprises elsewhere. Obama plans to visit Ohio each of the next three days, and will close the campaign on Monday with a swing through his Midwestern safety net of Wisconsin, Ohio and Iowa. "We want to make sure we lock it in and that it's definitely in our column," Obama senior adviser Robert Gibbs said on "CBS This Morning," when asked why Obama was focusing so much on Wisconsin if he had a solid lead there. Romney needs a breakthrough in one of those Midwestern states, or an upset in another state where Obama is even more heavily favored, to have a shot at making his electoral math work. Romney is within striking distance of Obama in four other states with a combined 55 electoral votes - Florida, Virginia, Colorado and New Hampshire. A series of Reuters/Ipsos online state polls found Obama led Romney among likely voters by a narrow margin of 3 percentage points in Virginia and 2 points in Ohio and Florida. They were tied in Colorado. The Romney campaign launched ads this week in Pennsylvania, Michigan and Minnesota - Democratic-leaning states where Obama's lead has dwindled in recent weeks - in an effort to expand the playing field, and Romney will visit Pennsylvania on Sunday. Republicans say the move is a sign of momentum, while Democrats call it a sign of desperation. By every metric, the Obama campaign is doing far worse than they were four years ago. They will continue playing defense on turf they once took for granted - Michigan, Minnesota, and Pennsylvania," Republican National Committee spokesman Sean Spicer said. With the polls so close and the outcome unpredictable, both campaigns made plans for a final weekend of get-out-the-vote efforts, focusing on getting their base supporters to the polls and reaching out to independents and the last undecideds. Romney headed to Ohio after starting the day in Wisconsin, and told voters in both states that Obama had failed to bridge the partisan divide and would be unable to work with Congress and break the gridlock in Washington. "He promised he'd have a post-partisan presidency but it's the most partisan I've seen," Romney said during a visit to a machine factory in Etna, Ohio. I will not represent one party, I will represent one nation. Senate Democratic leader Harry Reid said Romney's conservative agenda had already been rejected by the Democratic-led U.S. Senate and accused him of having a "terrible" relationship with Democrats when he was Massachusetts governor. "Mitt Romney's fantasy that Senate Democrats will work with him to pass his 'severely conservative' agenda is laughable," Reid said in a statement. Senate Democrats are committed to defending the middle class, and we will do everything in our power to defend them against Mitt Romney's Tea Party agenda. Additional reporting by Steve Holland in West Chester, Ohio, and Susan Heavey in Washington; Writing by John Whitesides; Editing by Alistair Bell and Peter Cooney