Presidential candidates are already lining up and the field is starting to take shape.

'WASHINGTON – The 2006 midterms are finally over (almost). Let the 2008 games begin.

'A handful of congressional races aren't quite over yet, but the jockeying for the 2008 presidential contest - going on for months, if not years - has burst fully into the open. For the Republicans, Sen. John McCain of Arizona and Rudolph Giuliani, former mayor of New York, have registered committees and signaled they're probably in. By all indications, outgoing Massachusetts Gov. Mitt Romney is in.

'For the Democrats, Sen. Hillary Rodham Clinton of New York has money and organization - and just bowed out of a party leadership position, another sign she may be in. Sen. Barack Obama of Illinois says he's pondering a run, possibly positioning himself as the un-Hillary. Outgoing Iowa Gov. Tom Vilsack is definitely in. Former vice presidential nominee John Edwards has shown all the signs.'

Christian Science Monitor article