Can't get routes to work how I want it to

[eluser]ElliotReevey[/eluser]

Code:

$route['campaign/newcampaign'] = 'campaign/newcampaign';
$route['campaign/(:any)'] = 'campaign/viewcampaign';

The above works, however I was hoping to achieve this by using a regular expression which says if NOT equal to newcampaign therefore I wouldn't have to add a new line for every other view that I created from the campaign controller.