President Bush will speak via satellite. Sen. Joe Lieberman, himself the Democrats nominee for Vice President in 2000, will address the Republicans Tuesday night. Former Pennsylvania Governor Tom Ridge and Former New York Mayor Rudy Giuliani were both scheduled to speak, but have been temporarily bumped from the schedule.
On the convention floor, the Pennsylvania delegates know their state, and the Philadelphia region, will continue to be very important in this presidential race.
For 20 years, The Keystone State has gone democratic. This time, the republicans sense they have a chance. Their motto: 21 in '08. In other words, they want to deliver Pennsylvania's 21 electoral votes to Sen. John McCain this November.
"If we win Pennsylvania for Senator McCain, I'm pretty confident he wins the entire election," said PA Attorney General Tom Corbett.
The Wisconsin Advertising Project says both candidates have spent more money in Pennsylvania than any other state - 8.5 million dollars altogether.
The number of ads run in Pennsylvania is also impressive:
Philadelphia is the number one market in the country with 33-hundred ads.
Harrisburg is sixth.
"I expect we will see both candidates not just spend a good bit of time, we might have to provide them with drivers licenses if they continue to hang in the state," said G. Terry Madonna of Franklin and Marshall College.
Vice presidential candidate Sarah Palin hasn't been seen in nearly two full days. Tuesday, the nation got a look at 18-year-old Levi Johnston, the father of Gov. Palin's daughter's baby. The campaign says Johnston plans to marry Bristol Palin. But, some in the party are worried about the attention this has gotten.
Former New Jersey Governor Christine Todd Whitman wonders why the McCain campaign didn't make the announcement right away.
"I just feel really badly for this young woman that she has to face this in the glare of publicity. I would have hoped the young man, if they were going to be engaged, that he would have been introduced as the fiancé then... so what."
Gov. Palin is set to address the convention Wednesday night.