WASHINGTON _ Abolishing the Electoral College. Packing the courts. Ending the filibuster.
Democratic presidential candidates have in recent weeks increasingly called for radical changes to the country's political process _ ideas that would transform how the courts and Congress conduct business and even how the country elects its presidents.
It's a new frontier in a primary that has already pushed the boundaries of what Democratic candidates traditionally support, and reflects a deeply felt conviction among liberal activists that big policy goals aren't possible without fundamental changes to the political system.
