Kerry Conquers Pennsylvania

Sen. John Kerry added the biggest state in the country and a crucial swing state to his win column, according to CBS News estimates, as the race for the White House remained up in the air.

Kerry's wins in California and Pennsylvania, along with Washington State, boosted his electoral vote total to 199, compared to 219 for President Bush. A total of 270 electoral votes are needed to win.

In the popular vote, Mr. Bush leads the Massachusetts senator 51 percent to 48 percent.

Polls are closed in every state but Alaska, but a number of key states, including Florida, Ohio, Michigan, Nevada, Minnesota, New Mexico, Wisconsin, New Hampshire and Hawaii remain too close to project a winner.

So far, the race was mirroring the 2000 election, with Mr. Bush winning all the states he carried four years ago, and Kerry winning all the states former Vice President Al Gore captured.

Mr. Bush swept the South with wins in Texas, Arkansas, Louisiana, Virginia, South Carolina, North Carolina, Alabama, Mississippi, Tennessee, Georgia and Kentucky. He also did well in the West and Midwest, capturing Arizona, Colorado, Missouri, Indiana, Kansas, Nebraska, Wyoming, South Dakota, North Dakota, Oklahoma, Utah and Montana.

Kerry dominated the East and Northeast with victories in New York, New Jersey, Rhode Island, Connecticut, Vermont, Delaware, Maryland and the District of Columbia, as well as his home state of Massachusetts. He also carried the electoral vote-rich Midwest state of Illinois.

So was the Senate, where Republicans held a 51-48 advantage with one Democratic-leaning independent. Democrat Barack Obama of Illinois became the third black U.S. senator since Reconstruction.

Only nine of 34 Senate races on the ballot appeared competitive, including Senate Democratic Leader Tom Daschle's fight for re-election in South Dakota.

CBS News estimates the House of Representatives, where all 435 members were up for election, will remain under Republican control.

Eleven gubernatorial contests were also being decided Tuesday, along with 5,800 legislative seats in 44 states.

Among the notable ballot measures was one in California to devote $3 billion for stem cell research. Several states had propositions that would ban same sex marriage.

But all eyes were focused on Kerry's bid to make Mr. Bush the first president voted out of office at a time of war.

"I've given it my all," the president said after voting at a Crawford, Texas, firehouse.

Kerry, a four-term Massachusetts senator, got teary-eyed as he thanked his staff for a campaign's worth of work. "We made the case for change," he said after voting at the Massachusetts Statehouse.

Early results from exit voting suggest that young people are playing a greater role in this year's presidential race than four years earlier. In 2000, 17 percent of voters nationwide were between the ages of 18 and 29. They broke nearly evenly between the major party candidates, with 48 percent supporting Gore and 46 percent supporting Mr. Bush.

This election the impact appears to be much more striking. Although they have not turned out in greater numbers nationally, they are leaning heavily toward Kerry, giving him a double-digit lead over the president among this age group.

The results are even more dramatic in several key battleground states. Roughly one in five voters in Ohio is under 30, supporting Kerry by roughly 20 percent over Mr. Bush. About one in six voters in Florida are between 18 and 29, leaning toward Kerry by about twenty percentage points. In Pennsylvania, more than 20 percent of voters are under 30, and they break toward Kerry by nearly twenty-five percentage points.

Older people are leaning toward President Bush, seemingly undoing the Democrat Party's historic advantage with this group. In the last three elections, voters 60 and over supported the Democrat nominee. This year, Bush holds a slight advantage with this age group.

CBS News National Exit Poll results are based on interviews with 11,027 voters. The sampling error is plus or minus 1 point. Exit Polls from specific states are based on interviews with at least 1930 voters, and could have a sampling error of as much as plus or minus 2 points.

With polls deadlocked and interest in the race exceptionally high, voter turnout was heavy. Some polls projected Election Day 2004 may see the largest proportion of eligible people voting in a generation.

There were some controversies and legal disputes over close races in some key swing states. In Ohio, a a federal appeals court approved a GOP plan to station observers in polling places. In Florida, the counting of absentee ballots began, but thousands were delayed going out.

Long lines were reported at precincts from Florida and North Carolina to West Virginia and Michigan.

"We even had people waiting in line before we opened at 6:30 a.m.," said Wayne County Clerk Robert Pasley in Wayne, W.Va. "In some places, there was more than a dozen people waiting, and that's heavy."

The prospect of unprecedented legal challenges hung over Election Day, each side sending thousands of lawyers into motion to monitor the flood of newly registered voters and mount hair-trigger challenges against any sign of irregularity.

"My hope of course is that this election ends tonight," Mr. Bush told reporters, referring to the expected legal challenges in some districts.

Scattered technical problems were reported around the country. One polling location in Mauldin, S.C., was forced to switch to paper ballots because of equipment troubles.

In Volusia County, Fla., a memory card in an optical-scan voting machine failed Monday at an early voting site and didn't count 13,000 ballots. Officials planned to feed and count those ballots Tuesday.