(CBS/AP)  A new CBS News poll shows the race for the White House is now dead even, with McCain closing an eight-point deficit since last weekend.

Ahead lie the traditional major checkpoints - presidential and vice presidential debates, millions of dollars in ads - but also the unscripted, spontaneous moments that can take on outsized importance in the race to pick a president.

Sen. Lindsey Graham, R-S.C., also had a speaking slot, and he used it to criticize McCain's rival. He said Obama and the liberal group MoveOn.org were the only ones who didn't realize that Bush's decision to deploy additional troops to Iraq last year had succeeded.

Ridge's turn at the podium came after he had been mentioned prominently in speculation about a running mate.

That was an honor that went unexpectedly to Palin, the first female vice presidential candidate in party history, a 44-year-old Alaska governor virtually unknown nationally a week ago.

In the days since, she has faced a storm of scrutiny, some of it relating to her tenure as mayor of Wasilla, Alaska, and her time as governor, but most involving her 17-year-old unmarried daughter who is pregnant.

For the most part, McCain's aides have kept Palin out of public sight while vociferously defending her readiness to become president. She emerged Wednesday night during prime time to deliver a smiling, sarcastic attack on Obama that generated roars of approval - and acceptance - from the delegates.

She followed up in the hours before McCain's convention appearance with a meeting with Republican governors and a fundraising appeal that blamed Democrats for spreading "misinformation and flat-out lies" about her family and her.

Even so, there were fresh questions about her readiness to sit one chair away from the Oval Office.

McCain has cited her authority over the Alaska National Guard as one example. But in a memo last spring, Air Force Maj. Gen. Craig Campbell warned that "missions are at risk" in the state's units because of a personnel shortage. The lack of qualified airmen, Campbell said, "has reached a crisis level."

In an interview on Wednesday with The Associated Press, Campbell said the situation has improved since then, but not enough to eliminate his concern that shortages will result in the burnout of troops.

McCain won the presidential nomination late Wednesday night in an anticlimactic vote that followed a campaign lasting most of a decade. He first ran for the White House in 2000, but lost the Republican nomination to Bush in a bruising struggle. He began the current campaign the Republican front-runner, but his chances seemed to collapse last winter when opposition to the Iraq war rose among independents and conservatives grew upset over his backing for legislation to give illegal immigrants a path toward citizenship.

In one of the most remarkable comebacks in recent times, he recovered to win the New Hampshire primary in early January, then wrapped up the nomination on Feb. 5 with big-state primary victories on Super Tuesday.

Obama, campaigning in swing-state Pennsylvania on Thursday, said he wasn't surprised at Palin's criticism of him, and said Democrats intended to focus on her record.

"I think she's got a compelling story, but I assume she wants to be treated the same way that guys want to be treated," he said. "I've been through this 19 months, she's been through it - what - four days so far?"

Obama's campaign announced it had raised roughly $10 million from more than 130,000 donors since Palin delivered her speech Wednesday night.

Outside the hall, police on horseback thwarted plans by anti-war demonstrators to march on the convention hall.

Scattered protesters inside interrupted his speech briefly near the start. He dismissed them, telling the crowd not to be diverted by "ground noise and static."

Not far from the convention center, police rounded up about 200 protesters on a bridge over Interstate 94. Caught up were reporters from several media outlets, including two AP reporters.

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