Blair has problems of his own in this country: an election is looming, most likely next May. He's been under increasing pressure from his own back benchers some of whom are less than thrilled about Bush's re-election. Also an alleged behind-the-scenes leadership dispute with his Chancellor adds to the pressure. He's had heart problems in the last few months, too. The deployment of the Black Watch soldiers nearer to Baghdad has caused much controversy here. If there are major casualties there then his position could become quite precarious. (Apart from those minor worries, he's fine!).
I heard one commentator say that Blair was fairly indifferent to the US election result. If Bush won, then it could serve as a vindication of the US/UK policy in Iraq which could help Blair's election chances. Alternatively, if Kerry won, then it would serve to draw a line under what some see as a disastrous alliance with Bush, and the chance of a new start. It really depends on what side of the fence you sit.
Traditionally, the Labour Party would be more aligned to the Democrats in the US, so Blair's close alliance with Bush and the Republicans (albeit because of the war in Iraq) rather turns things on their head.
As for him looking tense, we can only speculate about the sort of intelligence that must be passing across his desk on a daily basis now, so a furrowed brow would not be at all surprising.
Prayers and cheers for Tony Blair. A wonderful statesman, I think.
I sport a Union Jack flag license plate replica on my car in his honor and in honor of all our English friends such as you and british chick.
Fair analysis. Thanks