radical-leaning capitalist-leaning libertarian
Radical-Leaning - Those American politicians not in the republican category are probably in this section. It is moving in the same direction as the republican group, embraces democracy and rejects racism, but perhaps these people strongly support the death penalty or stand opposed to gay marriage. In American terms, these are more conservative people, but on this scale - which includes a wider range of global and historical politics - they are clustered under radical-leaning.
Capitalist-Leaning - Many Republicans and some Democrats fall here, and support balanced budgets, tax reform, free trade agreements, estate tax repeal, and spend more time talking about the problems of small business than raising the minimum wage. They like to push middle class tax cuts and associate economic success with production, wealth, and especially with high rates of consumerism and ownership.
Libertarian - Many people in the US Libertarian Party are minor heretics or simply adhere to certain social controls while remaining otherwise nearly anarchical. These people, in addition to a number of especially independent Democrats and Republicans, fit into the libertarian category. They do not seek the philosophical uber-consistency of the anarchists, but they propose most or nearly all of the same ideas and policies. Someone in the ACLU or the Republican Liberty Caucus would likely fall here.